JP5424965B2 - Monitoring control system and monitoring control program - Google Patents

Description

  The present invention relates to a monitoring control system and a monitoring control program for monitoring and controlling a plurality of devices.

  2. Description of the Related Art In recent years, various technologies have been proposed for a monitoring control system that monitors and controls a plurality of devices related to plant equipment, river flow meters, building air conditioning, lighting, and the like. In such a supervisory control system, in order to respond flexibly to various required specifications, a general supervisory control program, information specifying input / output points of a plurality of devices, and data processing at the input / output points, Tools for designing the screen configuration etc. are in place. The supervisory control system performs desired supervisory control by reading design information designed by a tool based on a supervisory control program when activated.

  The required specifications for such a monitoring control system are becoming more complex year by year, and it is required to add (extend) functions that cannot be supported by past monitoring control programs. Patent Documents 1 and 2 describe a technique for adding a new function to the monitoring control program.

  Patent Document 1 describes a technique related to a computer system that assembles a program without inputting, correcting, or recompiling the program code. In the reuse program, for example, a function having the same array element (argument) is used, such as f (arg1,..., ArgN), and data is exchanged for each array element between the reuse programs. . This array element is decided in advance by the user when developing the reuse program and stored in a definition file or the like. Even without compiling, the implementation unit that manages the reuse program can create a new system or program simply by reading the definition file for the newly added reuse program. Yes.

  Patent Document 2 describes a technique related to a monitoring control system in which the configuration and operation of a module for plant monitoring control processing are changed on a program. In this technique, a module is configured by selecting reusable parts such as a plurality of input programs, arithmetic programs, display programs, and output programs to be used in accordance with a plant to be monitored and controlled. At that time, it is possible to change the operation of the module by changing the parameter of each reused part. For example, in a module that notifies an error indicating that the upper and lower limits have been exceeded based on the required specifications, it is possible to switch between outputting on the screen or notifying by e-mail etc. by changing the definition file of the output program It has become.

Japanese Patent No. 3592944 JP 2007-233957 A

  In the technique of Patent Document 1, since an argument must be determined in advance between the reusable programs, when a user adds a new function, the argument of the new function is passed. It is necessary to perform programming for adding an argument to the target function and programming for reflecting the change to the entire reuse program. Also, in a design that combines reusable programs, the user is aware of what data is passed in each argument, or what arguments the reusable program handles. There must be.

  In addition, when adding a new function in the technology of Patent Document 2, the user searches for a reusable part that manages data, and understands a data format that is transferred between the reusable parts. Above, we must confirm the data format that is newly delivered as new functions are added. If the data format satisfies the specification, the user must perform programming to add a new program according to the format of the reusable part on the call side. It is necessary to perform programming to extend the reusable parts so that the data to be acquired can be acquired.

  As described above, in order to add a new supervisory control function in the supervisory control system, the existing supervisory control program is expanded or modified, but the work is complicated and takes time. As a result, the cost is high.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of easily adding a new function in a monitoring control system and a monitoring control program. To do.

  A monitoring control system according to the present invention is a monitoring control system for monitoring and controlling a plurality of numerical data and a plurality of types of event data collected from input / output points of a plurality of devices, wherein the plurality of predetermined numerical data and the plurality of types A plurality of data processing units for generating a plurality of category data by grouping the event data into a plurality of categories, generating a response including the category and the corresponding category data, and a request including the category, and an interface A data distribution unit that transmits / receives the response to / from the plurality of data processing units via the interface and receives the request from the plurality of data processing units via the interface. Each of the plurality of data processing units performs a predetermined process using the category data included in the response when receiving the response from the data distribution unit. The data distribution unit is based on the category included in the request received from the data processing unit of the request transmission source, and the category included in the response received from the data processing unit of the response transmission source, The response is transmitted to the data processor of the request transmission source.

  In addition, the monitoring control program according to the present invention provides (a) a plurality of data processing on a computer constituting a monitoring control system that monitors and controls a plurality of numerical data collected from input / output points of a plurality of devices and a plurality of types of event data. The unit generates a plurality of category data by grouping a plurality of predetermined numerical data and the plurality of types of event data into a plurality of categories, a response including the category and the category data corresponding to the category, and the category The process of generating a request is executed. Then, in the computer, (b) the data distribution unit includes the category included in the request received via the interface from the data processing unit that is a request transmission source, and the interface from the data processing unit that is a response transmission source. A step of transmitting the response to the data processing unit of the request transmission source via the interface based on the category included in the response received via the network, and (c) a data processing unit of the request transmission source However, when the response is received, a predetermined process is performed using the category data included in the response.

  According to the present invention, the data distribution unit transmits an appropriate response to the data processing unit that transmitted the request based on the category included in the request and the category included in the response. Therefore, when adding a data processing unit with a new function, it is not necessary to change the format of the request and response, and it is not necessary to change or expand the interface, so a new function can be easily added. Can do.

2 is a block diagram illustrating a hardware configuration of a monitoring control system according to Embodiment 1. FIG. 1 is a block diagram illustrating a configuration of a monitoring control system according to a first embodiment. 1 is a diagram illustrating a configuration of a monitoring control system according to a first embodiment. 1 is a diagram illustrating a configuration of a monitoring control system according to a first embodiment. 1 is a diagram illustrating a configuration of a monitoring control system according to a first embodiment. 1 is a diagram illustrating a configuration of a monitoring control system according to a first embodiment. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment. 6 is a flowchart illustrating an operation of the monitoring control system according to the second embodiment. 6 is a flowchart illustrating an operation of the monitoring control system according to the second embodiment. 10 is a flowchart showing the operation of the monitoring control system according to the third embodiment. 10 is a flowchart showing the operation of the monitoring control system according to the third embodiment. 10 is a flowchart illustrating an operation of the monitoring control system according to the fourth embodiment. 10 is a flowchart illustrating an operation of the monitoring control system according to the fourth embodiment. FIG. 10 is a block diagram illustrating a configuration of a monitoring control system according to a fifth embodiment. 10 is a flowchart showing the operation of the monitoring control system according to the fifth embodiment. 10 is a flowchart showing the operation of the monitoring control system according to the fifth embodiment. FIG. 10 is a diagram illustrating an operation of a monitoring control system according to a sixth embodiment. FIG. 10 is a block diagram illustrating a configuration of a monitoring control system according to a seventh embodiment. FIG. 10 is a diagram illustrating a configuration of a monitoring control system according to a seventh embodiment. 18 is a flowchart illustrating an operation of the monitoring control system according to the seventh embodiment. FIG. 10 is a diagram illustrating an operation of a monitoring control system according to a seventh embodiment. FIG. 10 is a diagram illustrating an operation of a monitoring control system according to a seventh embodiment. FIG. 10 is a diagram illustrating an operation of a monitoring control system according to a seventh embodiment. FIG. 10 is a diagram illustrating an operation of a monitoring control system according to a seventh embodiment. 18 is a flowchart illustrating an operation of the monitoring control system according to the seventh embodiment.

<Embodiment 1>
FIG. 1 is a diagram showing a hardware configuration that constitutes a monitoring control system 1 according to Embodiment 1 of the present invention. The monitoring control system 1 is realized by a computer, for example. The monitoring control system 1 includes a central processing unit (CPU) 10, a read only memory (ROM) 11, a random access memory (RAM) 12, a storage device 13, an input interface 14, an input device 15, and an output. An interface 16, an output device 17, a network connection interface 18, a network connection device 19, and a bus 20 are provided. A bus 20 that is a data bus electrically connects a plurality of hardware constituting the monitoring control system 1 to each other. Therefore, information can be transmitted and received between the hardware via the bus 20. In the present embodiment, the CPU 10, ROM 11, RAM 12, storage device 13, input interface 14, output interface 16, and network transmission / reception interface 18 are electrically connected to each other as a plurality of hardware via the bus 20.

  When this supervisory control system 1 receives an operation performed at the time of startup from a user, administrator or operator of the supervisory control system 1, a boot program, OS (Operating System) for starting the supervisory control system 1 is received. Read and execute. Hereinafter, each configuration of the monitoring control system 1 will be described in detail.

  The ROM 11 stores a control program such as a boot program. The RAM 12 temporarily stores data read from the storage device 13 by the CPU 10. The storage device 13 is, for example, an HDD (Hard Disk Drive), and the storage device 13 stores an OS, a monitoring control program, and various data.

  The CPU 10 controls the ROM 11, the RAM 12, the storage device 13, the input interface 14, and the output interface by reading and executing a control program stored in the ROM 11. Further, the CPU 10 reads out and executes the OS and the monitoring control program stored in the storage device 13, thereby performing calculations and operations defined by the monitoring control program. The CPU 10 gives the calculation result to the storage device 13, and when the calculation result is given from the CPU 10, the storage device 13 stores the calculation result.

  The input device 15 includes a keyboard, a mouse, and the like. When an operation from a user or the like is received, a command corresponding to the operation is given to the input interface 14. The input interface 14 is electrically connected to the input device 15 and connects the input device 15 to the bus 20. Thereby, a command from the input device 15 is input to the CPU 10 via the bus 20 and the input interface 14.

  The output device 17 is a device that outputs information to the outside, such as a CRT (Cathode Ray Tube) display or a liquid crystal display, and displays information from the output interface 16. The output interface 16 is electrically connected to the output device 17 and connects the output device 17 to the bus 20. As a result, information from the CPU 10 is output to the output device 17 via the bus 20 and the input interface 14. For example, when the output device 17 receives information from the CPU 10, the output device 17 displays the information.

  The network connection device 19 is a connection device connected to an external computer or an external device such as an Ethernet (registered trademark) card or a serial port, and transmits / receives information to / from the external computer. The network connection interface 18 is electrically connected to the network connection device 19 and connects the network connection device 19 to the bus 20. As a result, information and instructions from the CPU 10 are output to the network connection device 19 via the bus 20 and the network connection interface 18. Upon receiving information and a command from the CPU 10, the network connection device 19 transmits information from the CPU 10 to an external computer or the like based on the command. On the other hand, when receiving information from an external computer or the like, the network connection device 19 inputs the information to the CPU 10 via the bus 20 and the network connection interface 18.

<Functional blocks in the supervisory control system>
FIG. 2 is a diagram showing functional blocks formed in the monitoring control system 1 when the CPU 10 shown in FIG. 1 mainly reads and starts the monitoring control program stored in the storage device 13. As shown in FIG. 2, the monitoring control system 1 includes a plurality of data processing units 2, a data distribution unit 3, an interface 4, a data distribution definition storage unit 5, and a request storage unit 6.

  The monitoring control system 1 is electrically connected to a plurality of devices 9 to be monitored and other monitoring control systems 1 through a network, serial, or the like. In the present embodiment, it is assumed that these are connected to each other by the network 8.

  The plurality of devices 9 connected to the monitoring control system 1 detect a plurality of numerical data and a plurality of types of event data. The plurality of numerical data is, for example, river flow data and building temperature data. The plural types of event data are data indicating, for example, computer abnormality, numerical data abnormality, and abnormality in an event from another system. The plurality of devices 9 output a plurality of detected numerical data and a plurality of types of event data to the input / output points. Note that abnormalities (upper limit value, lower limit value, etc.) of numerical data collected by the data processing unit 2 may be detected and notified to other data processing units 2 as event data.

  Each of the plurality of data processing units 2 corresponds to, for example, a component on a program, and various processes (various functions) such as processing, conversion, storage, display, transmission / reception (collection), and management of data. Do at least one of the following. As a data storage method in the data processing unit 2, it is possible to store the data in a database (for example, RDBMS or XMLDB) or a file format. In FIG. 2, as an example of a plurality of data processing units 2, a data processing unit 2a that collects data from the outside, a data processing unit 2b that displays data, and data processing units 2c and 2d that manage data are shown. It is configured. In the present embodiment, the data processing unit 2a also has a network transmission / reception function for transmitting / receiving data to / from the data processing unit 2 operating on another monitoring control system 1. The monitoring control system 1 can realize various control monitoring by each of the plurality of data processing units 2 performing various processes (various functions). In the monitoring control system 1 according to the present embodiment, it is easy to add a new function, that is, a new data processing unit 2.

  The data processing unit 2 a having a data collection function among the plurality of data processing units 2 collects a plurality of numerical data from input / output points of the plurality of devices 9 and processes the collected plurality of numerical data. Hereinafter, the collected numerical data and the processed numerical data are collectively referred to as “collected / processed numerical data”.

  In the plurality of data processing units 2, a plurality of collected / processed numerical data is updated at a plurality of types of cycles, for example, every one minute, one hour, and one day. In this update, the collected / processed numerical data may be overwritten on the past collected / processed numerical data, or the latest collected / processed numerical data may be stored while the past collected / processed numerical data is retained. Good. Which operation is performed depends on what processing is performed in each data processing unit 2.

  The data processing unit 2a of the plurality of data processing units 2 groups the plurality of collected / processed numerical data updated in this way for each type of update cycle. As a result, the grouped data is formed by the number of types of update periods. For example, when three types of update periods of 1 minute, 1 hour, and 1 day are prepared, three grouped data are formed. Hereinafter, the identifier indicating the unit of the group is referred to as “category 7”, and the category 7 related to the period is sometimes referred to as “period category 7p”.

  This will be described in detail with reference to FIG. FIG. 3 is a diagram illustrating an example when a plurality of collected / processed numerical data are grouped into a plurality of types of periodic categories 7p. The input / output point identification number 51 is a number for uniquely identifying input / output points of a plurality of devices 9 such as “A0001” and “A0002”. As shown in the figure, a plurality of collected / processed numerical data is acquired for each input / output point identification number 51 and includes attributes 52 such as “name”, “data type”, “current value”, and the like. Each data (attribute value 53) is included.

  In the one-minute current value category 7pm, which is a kind of the cycle category 7p, collection / processing numerical data (attribute value 53) that is updated at a one-minute cycle among a plurality of collection / processing numerical data is grouped. In addition, in the one-hour category 7ph, which is a kind of the cycle category 7p, collected / processed numerical data (attribute value 53) that is updated in a one-hour cycle among a plurality of collected / processed data is grouped.

  Hereinafter, a plurality of collected / processed numerical data (attribute value 53) grouped for each periodic category 7p is referred to as category data 54. As shown in FIG. 3, one category data 54 is formed in one cycle category 7p. The category data 54 is transmitted / received between the data processing units 2, and each data processing unit 2 performs any one of processing, conversion, storage, display, transmission / reception (collection), and management on the category data 54. .

  As shown in FIG. 3, when a plurality of collected / processed numerical data are grouped into a plurality of periodic categories 7p, a definition category 7d is generated as a secondary. In the definition category 7d, information on input / output points such as the input / output point identification number 51, data of name and data type (attribute value 53) related to the category data 54 are grouped. The data of the definition category 7d is appropriately added to the category data 54 of the periodic category 7p.

  The data processing unit 2a of the multiple data processing unit 2 collects multiple types of event data from the input / output points of the multiple devices 9 in the same manner as the multiple collection / processing numerical data described above. The data processing unit 2a groups a plurality of types of event data for each event type. As a result, grouped data is formed for the number of event types. Hereinafter, the category 7 related to the event is referred to as “event category 7e”.

  This will be described in detail with reference to FIG. FIG. 4 is a diagram illustrating an example when a plurality of types of event data are grouped into a plurality of types of events in a group 7e. As shown in the figure, multiple types of event data include “event ID” assigned to each event data, “time stamp” indicating the time when the event occurred, “event state” indicating the current state of the event, etc. Data for each attribute 52 (attribute value 53).

  In the weather event category 7ew which is a kind of the event category 7e, event data (attribute value 53) related to the weather among a plurality of types of event data is grouped. In the system event category 7es, which is a kind of the event category 7e, event data (attribute value 53) relating to a system failure among a plurality of types of event data is grouped.

  Hereinafter, similarly to the above, a plurality of types of event data (attribute value 53) grouped for each event category 7e are referred to as category data 54. As shown in FIG. 4, one category data 54 is formed in one event category 7e. The category data 54 related to the event category 7e is transmitted and received between the data processing units 2 in the same manner as the category data 54 related to the periodic category 7p, and each data processing unit 2 processes, converts, accumulates, Display, send / receive (collect), or manage.

  In the following description, each of the periodic category 7p and the event category 7e may be collectively referred to as “category 7”. In other words, the operations of the plurality of data processing units 2 described above include a plurality of data processing units 2 according to the present embodiment, a plurality of collected / processed numerical data and a plurality of types of event data in the data processing unit 2a. A plurality of category data 54 are generated.

  When the data processing unit 2 needs the category data 54 from the other data processing unit 2, the data processing unit 2 generates a “request” including the category 7 and the number of responses described later, and sends the request to the data via the interface 4. It transmits to the distribution part 3. Hereinafter, the data distribution unit 2 that transmits a request to the data distribution unit 3 may be referred to as a “request transmission source data processing unit 2”, and the category 7 included in the request may be referred to as a “request target category”.

  On the other hand, when trying to transmit the category data 54 corresponding to the category 7 to another data processing unit 2, the data processing unit 2 generates a “response” including the category 7 and the category data 54. The response is transmitted to the data distribution unit 3 via the interface 4. Hereinafter, the data processing unit 2 that transmits a response to the data distribution unit 3 may be referred to as a “response transmission source data processing unit 2”, and the category 7 included in the response may be referred to as a “response target category”.

  If the data distribution unit 3 receives a response that includes the same category 7 as the request after receiving the request, the data distribution unit 3 transmits the response to the data processing unit 2 of the request transmission source that transmitted the request. To do. Such a data distribution unit 3 will be described later.

  The interface 4 supports response transmission / reception between the plurality of data processing units 2 and the data distribution unit 3, and is implemented in all the data processing units 2. The interface 4 defines five methods: “initialization method”, “end method”, “response reception method”, “request transmission method”, and “response transmission method”.

  The initialization method is implemented by all the data processing units 2 and is executed by the data distribution unit 3. When the initialization method of one data processing unit 2 is executed by the data distribution unit 3, the one data processing unit 2 is initialized.

  The end method is implemented by all the data processing units 2 and is executed by the data distribution unit 3. When the end method of one data processing unit 2 is executed by the data distribution unit 3, the one data processing unit 2 stops.

  The response reception method is implemented by all the data processing units 2 and is executed by the data distribution unit 3. When the response receiving method of one data processing unit 2 is executed by the data distribution unit 3, the one data processing unit 2 receives a response transmitted from the data distribution unit 3.

  The request transmission method is used for at least one data processing unit 2 among the plurality of data processing units 2. The at least one data processing unit 2 transmits a request to the data distribution unit 3 using a request transmission method provided by the interface 4.

  The response transmission method is used by at least one data processing unit 2 among the plurality of data processing units 2. The at least one data processing unit 2 transmits a response to the data distribution unit 3 using a response transmission method provided by the interface 4.

  The data distribution unit 3 corresponds to, for example, a component on a program, transmits / receives a response via the plurality of data processing units 2 and the interface 4, and also transmits from the plurality of data processing units 2 via the interface 4. Receive the request. The data distribution unit 3 distributes a response including the same category 7 as the request to the data processing unit 2 that transmitted the request. At this time, the data distribution unit 3 refers to data distribution definition information 30 stored in the data distribution definition storage unit 5 described later, or temporarily receives the received request in the request storage unit 6 ( Remember). A detailed description of this operation will be given later.

  The data distribution unit 3 not only transmits and receives responses and requests, but also starts and stops a plurality of data processing units 2 via the interface 4. In the present embodiment, a plurality of data processing units 2 that should be started and stopped by the data distribution unit 3 are stored in the data distribution definition storage unit 5. That is, the data distribution unit 3 activates the plurality of data processing units 2 stored in the data distribution definition storage unit 5 and initializes them via the interface 4. The data distribution unit 3 stops the plurality of data processing units 2 stored in the data distribution definition storage unit 5 via the interface 4. As a method for starting the data processing unit 2, for example, a C ++ DLL reading technique, a Java (registered trademark) jar file class loading technique, or the like is used.

  The data distribution definition storage unit 5 illustrated in FIG. 2 is a functional block of the storage device 13 illustrated in FIG. 1, and stores data distribution definition information 30 that associates the data processing unit 2 with the category 7.

  FIG. 5 is a diagram illustrating an example of the data distribution definition information 30. As shown in the figure, the data distribution definition information 30 is composed of information related to six items: an ID 31, a program file 32, a program address 33, a response target category 34, a request target category 35, and a virtual program 36. .

  The ID 31 indicates a number assigned to each of the plurality of data processing units 2 for uniquely identifying the data processing unit 2. The program file 32 indicates the name of the program file executed in the corresponding data processing unit 2. The program address 33 indicates an address of a reference destination on the own computer that is assigned to the data processing unit 2 when the monitoring control system 1 is activated. In FIG. 5, an address by a C program is shown, but it may be written by an address in a language such as a C ++ program or a Java (registered trademark) program.

  The response target category 34 indicates a category 7 that can be included in the response that the data processing unit 2 identified by the ID 31 transmits to the data distribution unit 3. That is, the data processing unit 2 identified by the ID 31 manages the category data 54 belonging to the category 7 of the response target category 34 and transmits the response including the category 7 and the category data 54 to the data distribution unit 3. Is possible. For example, the data processing unit 2 to which “1” is assigned as the ID 31 in FIG. 5 can transmit a response including the 1-minute current value category to the data distribution unit 3. The response target category 34 is not used in the present embodiment, but is used in the embodiments described later. Therefore, the response target category 34 is not essential in the present embodiment.

  The request target category 35 indicates a category 7 that can be included in a request that the data processing unit 2 identified by the ID 31 transmits to the data distribution unit 3. That is, when the data processing unit 2 identified by the ID 31 needs the category data 54 of the category 7 indicated in the request target category 35, the data processing unit 2 can transmit a request including the category 7 to the data distribution unit 3. Is possible. For example, in FIG. 5, the data processing unit 2 to which “2” is assigned as the ID 31 is the data processing unit 2 that requires the category data 54 of the one-minute current value category, and the category data 54 is required. In addition, a request including the one minute current value category can be transmitted to the data distribution unit 3.

  As shown in FIG. 5, in the request target category 35 according to the present embodiment, the plurality of categories 7 are different from each other, and each of the plurality of categories 7 is assigned to any one of the plurality of data processing units 2. Associated. That is, a plurality of categories 7 are associated with a plurality of data processing units 2 without overlapping one category 7.

  The one-minute current value category shown in FIG. 5 is the one-minute current value category 7pm shown in FIG. Each of the 1-day category, the January category, and the 1-year category shown in FIG. 5 is a kind of the periodic category 7p. The current value category is a collection of a plurality of periodic categories 7p. The current value abnormal event category is a kind of event category 7e.

  The virtual program 36 indicates the ID 31 of the data processing unit 2 to be routed when transmitting a request or response to another monitoring control system 1. In the present embodiment, the virtual program 36 indicates the ID 31 of the data processing unit 2a for data transmission / reception (collection) that transmits / receives data to / from another monitoring control system 1.

  The request storage unit 6 illustrated in FIG. 2 is a functional block of the storage device 13 illustrated in FIG. 1, and stores request cache information indicating the status of the request received by the data distribution unit 3.

  FIG. 6 is a diagram illustrating an example of request cache information. As shown in the figure, the request cache information 40 is composed of information on three items: a request target category 41, an ID 42, and a response count 43.

  The request target category 41 indicates the category 7 currently requested. That is, when the data distribution unit 3 receives a request from the data processing unit 2 but has not completed transmitting a corresponding response to the data processing unit 2, the category 7 included in the request is It is shown. The ID 42 indicates a number for uniquely identifying the data processing unit 2 of the request transmission source that has transmitted a request including the category 7 of the request target category 41 to the data distribution unit 3. This ID 42 number is the same as the ID 31 number of the data distribution definition information 30 shown in FIG. The response count 43 indicates the number of responses to be transmitted from the data distribution unit 3 to the data processing unit 2 with respect to a single request. For example, if the response count 43 indicates “1”, it indicates that the response should be transmitted only once. If it indicates “2”, the response should be transmitted twice. It shows that there is. When the response count 43 indicates “*”, it indicates that the response should be continuously transmitted until the request stop is called.

  Next, the operation of the monitoring control system 1 according to the present embodiment, which is performed by the CPU 10 executing the monitoring control program stored in the storage device 13, will be described with reference to FIGS.

  FIG. 7 is a flowchart showing an operation performed when the monitoring control system 1 is activated. In this operation, the data distribution unit 3 mainly reads the data distribution definition information 30 after activation, and sequentially starts the plurality of data processing units 2 specified in the data distribution definition information 30 one by one. Turn into. Before this operation, it is assumed that the data distribution unit 3 is executed by reading the data distribution unit program to the CPU 10. Hereinafter, this operation will be described in detail with reference to FIG.

  First, in step s 1, the activated data distribution unit 3 reads all data constituting the data distribution definition information 30 from the data distribution definition storage unit 5. In step s2, the data distribution unit 3 extracts the top row unit data from the data in a single row unit (row unit data) of the table shown in FIG. Then, in step s3, the data distribution unit 3 determines whether or not the virtual program 36 is not set in the extracted line unit data. If it is determined in step s3 that there is no setting, the process proceeds to step s4. If it is determined that it is not set, that is, set, the process proceeds to step s6.

  In step s4, the data distribution unit 3 acquires the program file 32 of one data processing unit 2 from the line unit data, starts the one data processing unit 2, and the address of the started data processing unit 2 Is stored in the program file 33. The program address 33 is acquired, and the one data processing unit 2 is activated. In step s5, the data distribution unit 3 executes the initialization method defined in the interface 4 for one activated data processing unit 2. Thereby, the activated one data processing unit 2 is initialized.

  In step s6, the data distribution unit 3 determines whether the above operation has been performed on all the data processing units 2 specified in the data distribution definition information 30. If it is determined in step s6 that the operation has been performed on all the data processing units 2, the process shown in FIG. 7 ends, and if not, the process proceeds to step s2. In step s2 again, the data distribution unit 3 extracts line unit data located one level lower than the previously extracted line unit data.

  In this way, the data distribution unit 3 performs a loop operation that repeats the operations of steps s3 to s5 on all the data processing units 2 specified in the data distribution definition information 30 read in step s1, thereby performing all the operations. The data processing unit 2 is activated and initialized.

  FIG. 8 is a flowchart showing an operation performed when one data processing unit 2 needs the category data 54. In this operation, mainly, the one data distribution unit 2 transmits a request to the data distribution unit 3. If necessary, the process shown in FIG. 8 may be performed immediately after the initialization (step s5). Hereinafter, this operation will be described in detail with reference to FIG.

  First, in step s10, the data processing unit 2 specifies the category 7 of the category data 54 required by itself and generates a request including the category 7. At this time, the data processing unit 2 also includes a response count indicating how many category data 54 should be transmitted in one request. In step s 11, the data processing unit 2 transmits the generated request to the data distribution unit 3 using a request transmission method defined in the interface 4. In step s12, the data distribution unit 3 receives the request transmitted from the data processing unit 2, that is, the data processing unit 2 that is the request transmission source.

  At this time, the data distribution unit 3 has not been able to specify which data processing unit 2 has transmitted the request received by itself, that is, which data processing unit 2 is the request transmission source.

  Therefore, in step s13, the data distribution unit 3 obtains the ID 31 of the data processing unit 2 of the request transmission source from the data distribution definition information 30 shown in FIG. 5 based on the category 7 included in the received request. Identify. Specifically, the data distribution unit 3 identifies the same category 7 as the received request among the categories 7 of the request target category 35 of the data distribution definition information 30, and the data processing unit associated with the category 7 2 ID31 is acquired.

  Here, since the request target category 35 is the category 7 that can be included in the request transmitted from the data processing unit 2 to the data distribution unit 3, the data distribution unit 3 performs the above-described operation. ID 31 of the data processor 2 of the request transmission source (hereinafter, may be abbreviated as “ID 31 of request transmission source”). In this embodiment, in the data distribution definition information 30, the same category 7 is not duplicated and a plurality of categories 7 are associated with a plurality of data processing units 2. ID31 is uniquely acquired. As described above, the data distribution unit 3 can uniquely identify from which data processing unit 2 the request is transmitted based on the category 7.

  After step s13, in step s14, the data distribution unit 3 sets the ID 31 of the request transmission source, the category 7 included in the request received in step s12, and the response count, the ID 42 of the request cache information 40, the request The target category 41 and the response count 43 are registered respectively, and the process shown in FIG. 8 ends.

  FIG. 9 is a flowchart showing an operation performed when one data processing unit 2 transmits the category data 54. In this operation, mainly, one data processing unit 2 that intends to transmit the category data 54 transmits a response including the category data 54 to the data distribution unit 3. Hereinafter, this operation will be described in detail with reference to FIG. Here, the process of generating the category data 54 will also be described first.

  In step s20, the data processing unit 2a receives a plurality of numerical data and a plurality of types of event data from the plurality of devices 9 via the network 8. In step s21, the data processing unit 2a processes and converts these received data as necessary. In step s22, the data processing unit 2a accumulates a plurality of collected / processed numerical data and a plurality of types of event data for each input / output point of the plurality of devices 9. In step s23, the data processing unit 2a groups a plurality of collected / processed numerical data and a plurality of types of event data into a plurality of categories 7, and generates a plurality of category data 54.

  The generation of the plurality of category data 54 in the above steps s20 to s23 is performed at least in the data processing unit 2a having a function of transmitting / receiving (collecting) data. On the other hand, the transmission of the response after step s24 described below is not limited to the data processing unit 2a, but is appropriately performed by the plurality of data processing units 2.

  In step s24, the data processing unit 2 that intends to transmit the category data 54 generates a response including the category data 54 and its category 7. In step s 25, the data processing unit 2 transmits the generated response to the data distribution unit 3 using the response transmission method defined in the interface 4. In step s26, the data distribution unit 3 receives the response transmitted from the data processing unit 2, that is, the data processing unit 2 of the response transmission source.

  Next, in step s27, the data distribution unit 3 determines whether the category 7 that matches the category 7 included in the received response matches the category 7 in the request target category 41 of the request cache information 40. In other words, the data distribution unit 3 includes a request target category included in the request received from the request processing source data processing unit 2, and a response target category included in the response received from the response transmission source data processing unit 2. Determine whether they match each other. If it is determined in step s27 that the category 7 matches, the process proceeds to step s28, and if not, the process illustrated in FIG. 9 ends.

  In step s28, the data distribution unit 3 updates the response count 43 of the request cache information 40. Specifically, when the response count 43 indicates a natural number, the data distribution unit 3 subtracts 1 from the natural number, and when the response count 43 becomes “0”, the data is distributed from the request cache information 40. Delete data such as the request target category 41. If the response count 43 indicates “*”, nothing is done.

  In step s 29, the data distribution unit 3 acquires the request transmission source ID 42 from the request cache information 40. And the data distribution part 3 specifies ID31 which shows the same number as acquired ID42 in the data distribution definition information 30, and acquires the program address 33 corresponding to the said ID31. In step s30, the data distribution unit 3 executes the response reception method defined in the interface 4 for the data processing unit 2 of the request transmission source identified by the ID 31, and the request transmission source data A response is transmitted to the processing unit 2. In this way, the data processing unit 2 of the request transmission source can acquire the desired category data 54 by receiving the response including the desired category data 54 from the data distribution unit 3. Thereafter, the data processing unit 2 of the request transmission source performs processing such as processing assigned to itself on the category data 54. And the process shown by FIG. 9 is complete | finished.

  The operation when transmitting and receiving a request and response in the monitoring control system 1 has been described above, but the operation when the monitoring control system 1 transmits and receives a request and response with another monitoring control system will be described below. To do.

  FIG. 10 is a flowchart illustrating an operation performed when the data processing unit 2 of the monitoring control system 1 receives a request from another monitoring control system 1. FIG. 11 illustrates the operation of the data processing unit 2 a of the monitoring control system 1. 7 is a flowchart illustrating an operation performed when a response is transmitted to another monitoring control system 1; Hereinafter, this operation will be described with reference to FIGS.

  In step s40 shown in FIG. 10, the data processing unit 2a having a function of transmitting / receiving data to / from another monitoring control system 1 sends the same request as described above from the data processing unit 2 of the other monitoring control system 1. An IP address that uniquely identifies the control system 1 is received. In step s41, the data processing unit 2a temporarily caches the information such as category 7 included in the received request and the IP address of the monitoring control system 1 of the request transmission source in association with each other. In step s42, the data processing unit 2a uses the request transmission method defined in the interface 4 to transmit the request received in step s41 to the data distribution unit 3. Thereafter, steps similar to steps s13 to s14 and steps s20 to s29 are performed.

  Then, in step s43 shown in FIG. 11, as in step s30, the data distribution unit 3 sends a response to the data processing unit 2a so that the request processing source data processing unit 2a receives the response. The reception method is executed, and a response is transmitted to the data processing unit 2a of the request transmission source. Thereby, the data processing unit 2 a receives a response including the same category 7 as the request transmitted to the data distribution unit 3 from the data distribution unit 3.

  In step s44, based on the category 7 included in the response received in step s43, the data processing unit 2a obtains the IP address of the monitoring control system 1 that is the request transmission source from the information cached in step s41. To do. At this time, a plurality of IP addresses may be acquired. Then, in step s45, the data processing unit 2a transmits a response to the other monitoring control system 1 identified by the acquired IP address.

  As described above, when the monitoring control system 1 receives a request from another monitoring control system 1, the monitoring control system 1 can transmit a response including the same category as the request to the other monitoring control system 1.

  Next, an operation performed when the data processing unit 2a of the supervisory control system 1 transmits a request to another supervisory control system 1 will be briefly described. Thereafter, the data processor 2a of the supervisory control system 1 performs other supervisory control. An operation performed when a response is received from the system 1 will be briefly described.

  First, an operation performed when the data processing unit 2a of the monitoring control system 1 transmits a request to another monitoring control system 1 will be described. The data processing unit 2a specifies the category 7 of the required category data 54 and generates a request including the category 7. At this time, the data processing unit 2a also includes the response count indicating how many category data 54 should be transmitted in one request in the request. Then, the data processing unit 2a transmits the generated request to another monitoring control system 1.

  Next, an operation performed when the data processing unit 2a of the supervisory control system 1 receives a response from another supervisory control system 1 will be described. When the data processing unit 2a receives a response from another monitoring control system 1, the data processing unit 2a performs the operations in steps s25 to s30. Thereby, the data processing unit 2 of the request transmission source can receive a response including the desired category data 54 from the other monitoring control system 1.

  FIG. 12 is a flowchart showing an operation performed when the monitoring control system 1 is stopped. In this operation, the data distribution unit 3 mainly reads the data distribution definition information 30 and sequentially stops the plurality of data processing units 2 specified in the data distribution definition information 30 one by one. Hereinafter, this operation will be described in detail with reference to FIG.

  First, in step s50, the data distribution unit 3 reads all data constituting the data distribution definition information 30 from the data distribution definition storage unit 5. In step s51, the data distribution unit 3 extracts the top row unit data from the data of one row unit (row unit data) of all the data shown in FIG. Then, in step s52, the data distribution unit 3 determines whether or not the virtual program 36 is not set in the extracted line unit data. If it is determined in step s52 that there is no setting, the process proceeds to step s53. If it is determined that there is no setting, that is, it has been set, the process proceeds to step s55.

  In step s53, the data distribution unit 3 acquires one data processing unit 2 from the row unit data. In step s54, the data distribution unit 3 executes an end method defined in the interface 4 for the one data processing unit 2. Thereby, the said one data processing part 2 stops.

  In step s55, the data distribution unit 3 determines whether the above operation has been performed on all the data processing units 2 specified in the data distribution definition information 30. If it is determined in step s55 that the operation has been performed on all the data processing units 2, the process shown in FIG. 12 ends. If not, the process proceeds to step s51. In step s51 again, the data distribution unit 3 extracts line unit data located one level lower than the previously extracted line unit data.

  In this manner, the data distribution unit 3 performs a loop operation that repeats the operations of steps s52 to s54 on all the data processing units 2 specified in the data distribution definition information 30 read in step s50, thereby performing all the operations. The data processing unit 2 is stopped.

  According to the monitoring control system 1 and the monitoring control program according to the present embodiment as described above, the data distribution unit 3 makes a request based on the category 7 included in the request and the category 7 included in the response. An appropriate response is transmitted to the transmitted data processing unit 2. Therefore, when adding the data processing unit 2 having a new function, the types of the category 7 and the category data 54 are increased or decreased, but it is not necessary to change the format of the request and the response. You don't have to change or extend Therefore, a new function can be easily added.

  Further, since the data distribution unit 3 can be started and stopped in the same manner as the existing data processing unit 2 if the added new data processing unit 2 is stored in the data distribution definition storage unit 5, a new Functions can be added easily.

  In the present embodiment, since the plurality of categories 7 associated with the plurality of data processing units 2 in the data distribution definition storage unit 5 are different from each other, the data distribution unit 3 includes the categories included in the response. 7 and the category 7 included in the request, it is possible to uniquely identify the data processor 2 of the request transmission source that requires a response (category data 54). Therefore, when adding the data processing unit 2, the response of the data processing unit 2 can be transmitted without being conscious of which data processing unit 2 of the plurality of data processing units 2 should be transmitted. Can be sent properly. Therefore, a new function can be easily added.

  In the present embodiment, each of a plurality of different categories 7 is associated with one of the plurality of data processing units 2. However, the present invention is not limited to this, and the plurality of categories 7 and the plurality of data processing units 2 may be associated with each other so that the same category 7 overlaps the plurality of data processing units 2. However, in this case, one data processing unit 2 that requires a response, that is, the data processing unit 2 that is the request transmission source is not uniquely identified. Therefore, in this case, by performing one of the following two methods, the data distribution unit 3 can uniquely identify the data processing unit 2 of the request transmission source.

  As a first method, the data distribution unit 3 gives the ID 31 of the data processing unit 2 to the data processing unit 2 in advance. Then, when the data is required, the request processing source data processing unit 2 assigns its own ID 31 to the request and transmits the request to the data distribution unit 3. The data distribution unit 3 registers this ID 31 in the request cache information 40. As a result, the data distribution unit 3 can uniquely identify the data processing unit 2 as the request transmission source.

  As a second method, the data distribution unit 3 gives the program address 32 of the data processing unit 2 to the data processing unit 2 in advance. Then, when data is necessary, the data processing unit 2 that is a request transmission source assigns its own program address 32 to the request and transmits the request to the data distribution unit 3. The data distribution unit 3 registers the program address 32 in the request cache information 40. As a result, the data distribution unit 3 can uniquely identify the data processing unit 2 as the request transmission source.

  Further, as a transmission method other than the response transmission method described above, the data distribution unit 3 corresponds to the category 7 by collecting all IDs 31 related to the category 7 included in the received response from the request cache information 40. Responses may be transmitted to all the data processing units 2 that perform the processing.

<Embodiment 2>
The hardware configuration and functional block configuration of the monitoring control system 1 according to the present embodiment are the same as the hardware configuration and functional block configuration of the monitoring control system 1 according to the first embodiment, respectively. Hereinafter, in the hardware configuration and the functional block configuration of the monitoring control system 1 according to the present embodiment, the same reference numerals are given to the same parts as those in the first embodiment, and the following parts different from the first embodiment. The explanation will be focused on.

  In the monitoring control system 1 and the monitoring control program according to the present embodiment, the data distribution unit 3 receives only responses including the same category 7 as the received request from the plurality of data processing units 2. . Hereinafter, the monitoring control system 1 and the monitoring control program according to this embodiment will be described.

  In the interface 4 according to the present embodiment, a “request reception method” is defined in addition to the above-described methods. This request reception method is implemented by all the data processing units 2 and is executed by the data distribution unit 3. When the request receiving method of one data processing unit 2 is executed by the data distribution unit 3, the one data processing unit 2 receives a request from the data distribution unit 3. Therefore, the data distribution unit 3 according to the present embodiment is configured to transmit / receive not only responses but also requests to / from the plurality of data processing units 2 via the interface 4.

  When receiving a request from one data processing unit 2, the data distribution unit 3 according to the present embodiment transmits the request to the data processing unit 2. When each of the plurality of data processing units 2 receives a request from the data distribution unit 3, it transmits only a response including the same category 7 as the request to the data distribution unit 3. Thereby, the data distribution unit 3 can receive only necessary responses from the plurality of data processing units 2.

  Next, the operation of the monitoring control system 1 according to the present embodiment will be described with reference to FIGS.

  FIG. 13 is a flowchart showing an operation performed when one data processing unit 2 needs the category data 54. First, steps s10 to s14 (FIG. 8) described in the first embodiment are performed. In step s15A, the data distribution unit 3 executes the request reception method defined in the interface 4 for all the data processing units 2, and sends the request received in step s12 to all the data processing units 2. To send. As a result, the all data processing unit 2 receives the request from the data distribution unit 3. In this example, the data distribution unit 3 transmits a request to all the data processing units 2, but the data distribution unit 3 refers to the response target category 34 and includes a response including the same category 7 as the request. May be specified, and the request may be transmitted only to the specified data processing unit 2. Then, in step s16A, each data processing unit 2 temporarily caches the category 7 included in the received request. And the process shown by FIG. 13 is complete | finished.

  FIG. 14 is a flowchart showing an operation performed when one data processing unit 2 transmits the category data 54. First, steps s20 to s23 (FIG. 9) described in the first embodiment are performed. In step s24A, the data processing unit 2 that intends to transmit the category data 54 determines whether the category 7 to be included in the response matches the category 7 cached in step s16A. If it is determined in step s24A that they match, the process proceeds to step s24, and thereafter, the same process as that described in the first embodiment is performed. If it is determined in step s24A that they do not match, each data processing unit 2 does not generate and transmit a response, and the process shown in FIG. 14 ends. With this operation, all the data processing units 2 transmit only the response including the same category 7 as the request received from the data distribution unit 3 to the data distribution unit 3.

  According to the monitoring control system 1 and the monitoring control program according to the present embodiment as described above, the same effect as that of the first embodiment can be obtained, and the data distribution unit 3 can provide a plurality of necessary responses only. Can be received from the data processing unit 2. Therefore, since unnecessary processing can be reduced in the data distribution unit 3, it is possible to reduce the load on the data distribution unit 3 and increase the processing speed.

<Embodiment 3>
The hardware configuration and functional block configuration of the monitoring control system 1 according to the present embodiment are the same as the hardware configuration and functional block configuration of the monitoring control system 1 according to the second embodiment. Hereinafter, in the hardware configuration and the functional block configuration of the monitoring control system 1 according to the present embodiment, the same reference numerals are given to the same parts as those in the second embodiment, and the following parts different from the second embodiment. The explanation will be focused on.

  Also in the monitoring control system 1 and the monitoring control program according to the present embodiment, the data distribution unit 3 receives only necessary responses from the plurality of data processing units 2 as in the second embodiment. . Hereinafter, the monitoring control system 1 and the monitoring control program according to this embodiment will be described.

  The plurality of data processing units 2 according to the present embodiment include the input / output point identification number 51 in the request and response. When the input / output point identification number 51 is included in the request and response, for example, data of the definition category 7d shown in FIG. 3 including the input / output point identification number 51 may be included in the request and response.

  Similar to the second embodiment, the data distribution unit 3 according to the present embodiment transmits a request to all the data processing units 2 when receiving a request from one data processing unit 2. When each of the plurality of data processing units 2 receives a request from the data distribution unit 3, only the response including the same category 7 and input / output point identification number 51 as the request is sent to the data distribution unit 3. Send. As a result, the data distribution unit 3 can receive only necessary responses from the plurality of data processing units 2.

  Next, the operation of the monitoring control system 1 according to the present embodiment will be described with reference to FIGS.

  FIG. 15 is a flowchart showing an operation performed when one data processing unit 2 needs the category data 54. First, steps s10 to s15A (FIG. 13) described in the second embodiment are performed. However, in step s10 according to the present embodiment, the one data processing unit 2 generates a request including the category 7, the number of responses, and the input / output point identification number 51. In step s16B, each data processing unit 2 temporarily caches the category 7 and the input / output point identification number 51 included in the received request, and the process illustrated in FIG. 15 ends.

  FIG. 16 is a flowchart showing an operation performed when one data processing unit 2 transmits the category data 54. First, steps s20 to s23 (FIG. 14) described in the second embodiment are performed. In step s24B, the data processing unit 2 that intends to transmit the category data 54 includes the category 7 and input / output point identification number 51 to be included in the response, and the category 7 and input / output points cached in step s16B. It is determined whether the identification numbers 51 match each other. If it is determined in step s24B that they match, the process proceeds to step s24, and thereafter, the same process as that described in the first embodiment is performed. If it is determined in step s24B that they do not match, each data processing unit 2 does not generate and transmit a response, and the process shown in FIG. 16 ends. With this operation, all the data processing units 2 transmit only a response including the same category 7 and input / output point identification number 51 as the request received from the data distribution unit 3 to the data distribution unit 3.

  According to the monitoring control system 1 and the monitoring control program according to the present embodiment as described above, the same effects as those of the second embodiment can be obtained. In particular, in the present embodiment, the data distribution unit 3 can receive only a more limited response from the data processing unit 2 by using the input / output point identification number 51, so that it is unnecessary in the data distribution unit 3. Processing can be further reduced. Therefore, it is possible to increase the load reduction and the high-speed processing of the data distribution unit 3.

<Embodiment 4>
The hardware configuration and functional block configuration of the monitoring control system 1 according to the present embodiment are the same as the hardware configuration and functional block configuration of the monitoring control system 1 according to the second embodiment. Hereinafter, in the hardware configuration and the functional block configuration of the monitoring control system 1 according to the present embodiment, the same reference numerals are given to the same parts as those in the second embodiment, and the following parts different from the second embodiment. The explanation will be focused on.

  Also in the monitoring control system 1 and the monitoring control program according to the present embodiment, the data distribution unit 3 receives only necessary responses from the plurality of data processing units 2 as in the second embodiment. . Hereinafter, the monitoring control system 1 and the monitoring control program according to this embodiment will be described.

  Similar to the second embodiment, the data distribution unit 3 according to the present embodiment transmits a request to all the data processing units 2 when receiving a request from the data processing unit 2.

  The plurality of data processing units 2 according to the present embodiment include, in addition to the category 7 and the number of responses, a narrow-down condition described later that makes it possible to narrow down the category data 54 in the request. When each of the plurality of data processing units 2 receives a request from the data distribution unit 3, each of the plurality of data processing units 2 includes the same category 7 as the request and category data 54 that matches the narrow-down condition included in the request. Only the response including it is transmitted to the data distribution unit 3. As a result, the data distribution unit 3 can receive only necessary responses from the plurality of data processing units 2.

  Next, the narrowing conditions will be described. The narrowing-down conditions are “<”, “<=”, “=”, “!” For the attribute 52 of the category data 54 shown in FIGS. This is a search sentence composed of a narrowed item set in which narrowed items obtained by combining operands such as “=”, “=>”, “>” and values such as threshold values are combined by “AND” or “OR”. In the attribute 52 indicated as “event type” in FIG. 3, the narrow-down condition for narrowing down the category data 54 that is the attribute value 53 indicated as “minor failure” is described as follows in the XML format.

  Note that the narrowing conditions common to the monitoring control system 1 can also predetermine the type and format of the attribute value 53. For example, a trend graph such as an attribute value acquisition start time or the number of acquisitions, a frequently used graph, or the like can be used. An example of the narrowing condition is described as follows in the XML format.

  Next, the operation of the monitoring control system 1 according to the present embodiment will be described with reference to FIGS.

  FIG. 17 is a flowchart showing an operation performed when one data processing unit 2 needs the category data 54. First, steps s10 to s15A (FIG. 13) described in the second embodiment are performed. However, in step s10 according to the present embodiment, the one data processing unit 2 generates a request including the category 7, the number of responses, and the filtering condition. In step s16C, each data processing unit 2 temporarily caches the category 7 and the narrow-down condition included in the received request, and the process illustrated in FIG. 17 ends.

  FIG. 18 is a flowchart showing an operation performed when one data processing unit 2 transmits the category data 54. First, steps s20 to s24A (FIG. 14) described in the second embodiment are performed. In step s24A corresponding to the last step in the series of steps, if it is determined that the category 7 to be included in the response matches the category 7 cached in step s16C, the process proceeds to step s24C. On the other hand, if it is determined in step s24A that they do not match, each data processing unit 2 does not generate and transmit a response, and the process shown in FIG. 18 ends.

  In step s24C, each of the plurality of data processing units 2 that intend to transmit the category data 54 determines whether the category data 54 that is to be included in the response matches the filtering condition cached in step s16C. . If it is determined in step s24C that they match, the process proceeds to step s24, and thereafter, the same process as that described in the first embodiment is performed. When it is determined in step s24C that they do not match, each data processing unit 2 does not generate and transmit a response, and the process shown in FIG. 16 ends. With this operation, all the data processing units 2 transmit only a response including the same category 7 as the request received from the data distribution unit 3 and the category data 54 matching the request to the data distribution unit 3. become.

  According to the monitoring control system 1 and the monitoring control program according to the present embodiment as described above, the same effects as those of the second embodiment can be obtained. In particular, in the present embodiment, the data distribution unit 3 can receive only a more limited response by using the narrow-down condition, so that unnecessary processing in the data distribution unit 3 can be further reduced. it can. Therefore, it is possible to increase the load reduction and the high-speed processing of the data distribution unit 3.

  Note that this embodiment is merely an example, and search conditions can be described in various formats. It is also possible to take a method of omitting unnecessary character string analysis and the like by determining search conditions in the monitoring control system 1 in advance.

  In the above description, the monitoring control system 1 according to the present embodiment is applied to the second embodiment. However, the present invention is not limited to this and may be applied to the third embodiment.

<Embodiment 5>
The hardware configuration of the monitoring control system 1 according to the present embodiment is the same as that of the second embodiment, but the functional block configuration of the monitoring control system 1 according to the present embodiment is different from that of the second embodiment. Hereinafter, in the functional block configuration of the supervisory control system 1 according to the present embodiment, the same reference numerals are given to the same parts as those of the second embodiment, and in the following, the parts different from the second embodiment will be mainly described.

  In the monitoring control system 1 and the monitoring control program according to the present embodiment, the data distribution unit 3 acquires the category data 54 at the specified time regardless of the update timing of the category data 54, and the request transmission source data. The category data 54 is transmitted to the processing unit 2. Hereinafter, the monitoring control system 1 and the monitoring control program according to this embodiment will be described.

  FIG. 19 is a diagram illustrating functional blocks of the monitoring control system 1 according to the present embodiment. As shown in the figure, the monitoring control system 1 according to the present embodiment is obtained by adding a timer execution unit 50 to the monitoring control system 1 according to the first embodiment. The interface 4, the request, the data distribution unit 3, and the data distribution definition information 30 in the monitoring control system 1 according to the present embodiment are obtained by adding a part of the functions of the second embodiment. ing.

  In the present embodiment, in addition to the five methods described in the first embodiment, a “transmission instruction request reception method” is defined in the interface 4. This transmission instruction request reception method is implemented by all the data processing units 2 and is executed by the data distribution unit 3. When a transmission instruction request reception method of one data processing unit 2 is executed by the data distribution unit 3, the one data processing unit 2 allocates substantially the same distribution as the request transmitted from the data distribution unit 3. A copy generation request is received. Immediately after that, the one data processing unit 2 transmits a response including the same category 7 as the distribution unit generation request to the data distribution unit 3.

  As described above, the transmission instruction request reception method is a synchronous method in which the data processing unit 2 receives a request and transmits a response almost simultaneously. For the sake of simplicity, the data processing unit 2 instructed to transmit the response to the data distribution unit 3 when the transmission instruction request reception method is executed is referred to as “response transmission instruction target data processing unit 2. May also be referred to below.

  The plurality of data processing units 2 according to the present embodiment generate not only the above-described request including the category 7 and the response count, but also a request including information on the designated time in addition to the category 7 and the response count.

  In addition to the operations described so far, the data distribution unit 3 according to the present embodiment is the same as the request in the response target category 34 shown in FIG. Specify category 7. Then, the data distribution unit 3 uses the ID 31 of the data processing unit 2 associated with the identified category 7 as the ID 31 of the data processing unit 2 that is the response transmission instruction target (hereinafter, “ID 31 of the response transmission instruction target” for short). (Sometimes called).

  The data distribution unit 3 assigns the category 7 included in the received request and the acquired response transmission instruction target ID 31 to the timer execution unit 50 and executes the timer so as to start at the specified time included in the request. The unit 50 is instructed.

  The timer execution unit 50 sleeps until the designated time while holding the category 7 and the response transmission instruction target ID 31 given from the data distribution unit 3. Then, when the designated time is reached, the timer execution unit 50 assigns the category 7 and the response transmission instruction target ID 31 held to the data distribution unit 3.

  When receiving the category 7 and the response transmission instruction target ID 31 from the timer execution unit 50, the data distribution unit 3 generates a “distribution unit generation request” including the category 7. Then, the data distribution unit 3 transmits the distribution unit generation request to the data processing unit 2 identified by the response transmission instruction target ID 31. The data distribution unit 3 then transmits a response transmitted from the data processing unit 2 to the data processing unit 2 that is the request transmission source.

  FIG. 20 is a flowchart showing an operation performed when one data processing unit 2 needs the category data 54. First, steps s10 to s14 (FIG. 8) described in the first embodiment are performed. However, in step s10 according to the present embodiment, the one data processing unit 2 selectively generates a request that does not include the specified time and a request that includes the specified time.

  In step s17 after step s14, the data distribution unit 3 determines whether the request received in step s12 includes information on the specified time. If it is determined in step s17 that the information of the designated time is included, the process proceeds to step s18, and if not, the process illustrated in FIG. 20 ends.

  In step s18, the data distribution unit 3 acquires the response transmission instruction target ID 31 from the data distribution definition information 30 based on the category 7 included in the request received in step s12. Specifically, the data distribution unit 3 identifies the same category 7 as the request received in step s12 among the response target categories 34 shown in FIG. 5, and the data processing unit 2 associated with the category 7 Is acquired as the ID 31 of the response transmission instruction target.

  Then, the data distribution unit 3 gives the category 7 of the request received in step s12 and the response transmission instruction target ID 31 to the timer execution unit 50 and instructs the timer execution unit 50 to start at the specified time. . The timer execution unit 50 holds the category 7 assigned from the data distribution unit 3 and the response transmission instruction target ID 31. And the process shown by FIG. 20 is complete | finished.

  FIG. 21 is a flowchart illustrating an operation performed when the timer execution unit 50 is activated at a specified time. In step s60, timer execution unit 50 sleeps until the designated time. In step s61, the timer execution unit 50 starts at a specified time. In step s62, the timer execution unit 50 assigns the category 7 and the response transmission instruction target ID 31 that are held to the data distribution unit 3.

  In step s63, when the data distribution unit 3 receives from the timer execution unit 50 the held category 7 (same category 7 as the request received by the data distribution unit 3 in step s12), Generate distribution part generation request including.

  In step s64, the data distribution unit 3 executes the transmission instruction request reception method defined in the interface 4 for the response transmission instruction target data processing unit 2 identified by the response transmission instruction target ID 31. Then, the generated distribution unit generation request is transmitted to the data processing unit 2.

  Thereby, in step s64, the following steps s64a to s64d are performed. First, in step s64a, the data processing unit 2 that is a response transmission instruction target receives a distribution unit generation request from the data distribution unit 3. In step s64b, the response transmission instruction target data processing unit 2 identifies the category 7 included in the distribution unit generation request. Then, the response processing instruction target data processing unit 2 performs the same process as the steps s20 to s23 (FIG. 9) described in the first embodiment on the category data 54 of the identified category 7, so that various types of the device 9 Generate from data. In step s64c, the data processing unit 2 as a response transmission instruction target generates a response including the category 7 and the generated category data 54, and transmits the response to the data distribution unit 3. In step s64d, the data distribution unit 3 receives a response from the data processing unit 2 that is a response transmission instruction target. Note that the above steps s64a to s64d are performed immediately after the data distribution unit 3 transmits the distribution unit generation request to the data processing unit 2 that is a response transmission instruction target.

  In step s65, the data distribution unit 3 acquires the ID 31 from the request transmission source ID 42 of the request cache information 40, and acquires the program address 33 corresponding to the ID 31 as in the first embodiment. In step s66, the data distribution unit 3 executes a response reception method for the request processing source data processing unit 2, and sends the response received in step s64d to the request transmission source data processing unit 2. Send. Thereby, the data processing unit 2 of the request transmission source can receive the response including the desired category data 54 from the data distribution unit 3 at almost the specified time and acquire the desired category data 54.

  In step s67, as in step s28 in the first embodiment, the data distribution unit 3 updates the response count 43 of the request cache information 40. In step s68, the data distribution unit 3 determines whether the response count 43 is “1” or more or “*”. If it is determined in step s68 that the response count 43 is “1” or more or “*”, the process proceeds to step s69. Otherwise, the process illustrated in FIG. 21 ends. In step s69, as in step s18 shown in FIG. 20, the data distribution unit 3 gives the category 7 and the response transmission instruction target ID 31 to the timer execution unit 50 and starts the timer at the specified time. The execution unit 50 is instructed.

  According to the monitoring control system 1 and the monitoring control program according to the present embodiment as described above, the data processing unit 2 that has transmitted the request receives the category data 54 almost at the specified time regardless of the update timing of the category data 54. Can be received. Therefore, when the designated time is set shortly before the data processing unit 2 processes the category data 54, the data processing unit 2 processes the data that has been collected from the input / output points. Can do.

<Embodiment 6>
The hardware configuration and functional block configuration of the monitoring control system 1 according to the present embodiment are the same as the hardware configuration and functional block configuration of the monitoring control system 1 according to the first embodiment, respectively. Hereinafter, in the hardware configuration and the functional block configuration of the monitoring control system 1 according to the present embodiment, the same reference numerals are given to the same parts as those in the first embodiment, and the following parts different from the first embodiment. The explanation will be focused on.

  FIG. 22 is a diagram showing one category data 54. FIG. 22 shows the category data 54 of the one-hour category 7ph shown in FIG. As shown in FIG. 22, the one category data 54 is composed of a plurality of attribute values 53, and the one-hour category 7 ph is composed of a plurality of attributes 52.

  In the present embodiment, in the category data 54, some of the plurality of attributes 52 constituting the periodic category 7p are “virtual category 7v”, and the attribute value 53 corresponding to the virtual category 7v is “virtual category data 54v”. . Then, the plurality of data processing units 2 according to the present embodiment group one category data 54 into a plurality of virtual categories 7p to generate a plurality of virtual category data 54v. Although the cycle category 7p is described here, the same applies to the event category 7e. The virtual category 7v may be one attribute 52 or a part of the attribute 52 as shown in FIG. Further, the attribute value 53 used as the virtual category data 54v may be acquired by, for example, replicating the attribute value 53 managed by the normal category 7, or the attribute managed by the category 7 as necessary. It may be obtained from the value 53.

  Then, the plurality of data processing units 2 send the virtual response including the virtual category 7v and the virtual category data 54v corresponding to the virtual category 7v, and the virtual request including the virtual category 7v, respectively, Generate as a request. That is, the virtual response and the virtual request are handled in the same manner as the response and request described so far.

  According to the monitoring control system 1 and the monitoring control program according to the present embodiment as described above, necessary data in the category data 54 can be extracted as the virtual category data 54v. Accordingly, the amount of response and request data to be transmitted / received can be reduced, thereby enabling high-speed processing.

<Embodiment 7>
The hardware configuration of the monitoring control system 1 according to the present embodiment is the same as that of the fifth embodiment, but the functional block configuration of the monitoring control system 1 according to the present embodiment is different from that of the fifth embodiment. Hereinafter, in the functional block configuration of the monitoring control system 1 according to the present embodiment, the same reference numerals are given to the same parts as those in the fifth embodiment, and the parts different from those in the fifth embodiment will be mainly described below.

  In the monitoring control system 1 and the monitoring control program according to the present embodiment, the data processing unit 2 that transmits and receives a response and the like to the data distribution unit 3 is changed to another data processing unit 2 or a plurality of data processing units 2 It is possible to add a data processing unit 2. Hereinafter, the monitoring control system 1 and the monitoring control program according to this embodiment will be described.

  FIG. 23 is a diagram showing functional blocks of the supervisory control system 1 according to the present embodiment. As shown in the figure, the monitoring control system 1 according to the present embodiment is different from the monitoring control system 1 according to the fifth embodiment in that the candidate data processing combination design unit 60, the candidate data processing storage unit 61, and the candidate data processing The union verification unit 62 is added.

  The candidate data processing combination design unit 60 is a design tool that combines a plurality of candidate data processing units 68 used as the plurality of data processing units 2. Specifically, the user or the like separates one candidate data processing unit 68 from among a plurality of combined candidate data processing units 68 using a GUI (Graphical User Interface) in the candidate data processing combination design unit 60. The candidate data processing unit 68 is changed, or a new candidate data processing unit 68 is added to the plurality of candidate data processing units 68. When the candidate data processing combination design unit 60 performs a registration operation, new data distribution definition information 30 is generated based on the combination of the plurality of candidate data processing units 68, and the new data distribution Definition information 30 is stored in the data distribution definition storage unit 5.

  Since the new data distribution definition information 30 is stored in the data distribution definition storage unit 5, a plurality of candidate data processing units 68 combined in the candidate data processing combination design unit 60 are used as a plurality of data processing units 2. used. In the present embodiment, the data processing unit 2 can be changed and added by changing and adding the candidate data processing unit 68 as described above.

  The candidate data processing combination verification unit 62 has a function of verifying whether the combination of the plurality of candidate data processing units 68 in the candidate data processing combination design unit 60 is correct.

  The candidate data processing storage unit 61 stores candidate data processing definition information 63 used when the candidate data processing combination design unit 60 is combined. The candidate data processing definition information 63 includes information in which a plurality of candidate data processing units 68 are associated with a plurality of categories 7. FIG. 24 is a diagram illustrating an example of the candidate data processing definition information 63. As shown in the figure, the candidate data processing definition information 63 includes an ID 64, a data processing name 65, a response target category 66, and a request target category 67. The ID 64 indicates a number for uniquely identifying each of the plurality of candidate data processing units 68 by the candidate data processing combination design unit 60. The data processing name 65 indicates a name displayed as the candidate data processing unit 68 on the screen of the candidate data processing combination design unit 61. The response target category 66 indicates a category 7 that can be included in a response that one candidate data processing unit 68 transmits to the data distribution unit 3. The request target category 67 indicates a category 7 that can be included in a request that one candidate data processing unit 68 transmits to the data distribution unit 3.

  Next, the operation of the monitoring control system 1 according to the present embodiment will be described. FIG. 25 is a flowchart illustrating an operation when the candidate data processing unit 68 is changed in the candidate data processing combination design unit 60.

  First, when the candidate data processing combination design unit 60 is activated in step s80, as shown in FIG. 26, an editing area 71 displaying a combination of a plurality of candidate data processing units 68 and a plurality of candidate data processing units 68. A selection area 72 for selecting one candidate data processing unit 68, a search button 73, a list button 74, a setting button 75, and a registration button 76 are displayed on the screen 70.

  In step s 81, candidate data processing combination design unit 60 reads candidate data processing definition information 63 stored in candidate data processing storage unit 61. In step s82, the candidate data processing combination design unit 60 reads the data distribution definition information 30 stored in the data distribution definition storage unit 5. Then, as shown in FIG. 27, the candidate data processing combination design unit 60 displays the combination of the plurality of candidate data processing units 68 used as the plurality of data processing units 2 in the editing area 71.

  Here, for example, in FIG. 24, the candidate data processing unit 68 of “data collection data processing” is associated with the category 7 of “current value category” as the response target category 66. This means that the candidate data processing unit 68 of “data collection data processing” can generate a response including the category 7 of “current value category”. On the other hand, “current value category” is associated as the request target category 67 with the candidate data processing unit 68 of “current value management data processing”. This means that the candidate data processing unit 68 of “current value management data processing” can generate a request including the category 7 of “current value category”.

  Therefore, when these candidate data processing units 68 are used as the data processing unit 2, the response including the category 7 of “current value category” is “data collection data processing” by the operation of the data distribution unit 3. The data processing unit 2 transmits the data to the data processing unit 2 of “current value management data processing”. An arrow 78 shown in FIG. 27 indicates a direction in which a response is transmitted between the candidate data processing units 68. An arrow 77 is similarly displayed between the other candidate data processing units 68.

  In step s83, the candidate data processing unit 68 to be edited is selected from the plurality of candidate data processing units 68 displayed in the editing area 71. After the selection, the block is hatched or the like so that the candidate data processing unit 68 to be edited can be distinguished from the other candidate data processing units 68 in the editing area 71.

  When the search button 73 is pressed in step s84, the candidate data processing combination design unit 60 associates the response target category 66 with the candidate data processing unit 68 associated with the category 7 equivalent to the candidate data processing unit 68 to be edited. To get. For example, in FIG. 28, the candidate data processing unit 68 of “current value management data processing” is selected as the candidate data processing unit 68 to be edited. In FIG. 24, the category 7 of the response target category 66 associated with the candidate data processing unit 68 of this “current value management data processing” is “1 minute current value category”. In addition to the candidate data processing unit 68 for “current value management data processing”, the “1 minute current value category” is associated with the candidate data processing unit for “stub current value management data processing”. 68. Accordingly, when step s84 is performed in this case, the candidate data processing combination design unit 60 acquires “stub current value management data processing”. Note that the candidate data processing unit 68 of the stub current value management data processing makes it possible to perform a simulated test when used as the data processing unit 2.

  In step s85, the candidate data processing combination design unit 60 displays the candidate data processing unit 68 to be edited and the acquired candidate data processing unit 68 in the selection area 72. For example, in FIG. 28, “current value management data processing” is displayed in the selection area 72 as the candidate data processing unit 68 to be edited, and “stub current value management data processing” is selected as the acquired candidate data processing unit 68. It is displayed in area 72.

  When the setting button 75 is pressed after the candidate data processing unit 68 to be edited and another candidate data processing unit 68 displayed in the selection area 72 are selected in step s86, the candidate data processing combination design unit 60 displays the selected candidate data processing unit 68 in the editing area 71 instead of the candidate data processing unit 68 to be edited. For example, in FIG. 29, a candidate data processing unit 68 of “stub current value management data processing” is displayed in the editing area 71 instead of the candidate data processing unit 68 of “current value management data processing” shown in FIG. The

  Along with this change, the candidate data processing combination design unit 60 also changes the arrow 77 indicating the transmission direction of the response between the candidate data processing units 68. For example, in the request target category 66 shown in FIG. 24, the category 7 is not registered in the candidate data processing unit 68 of the “stub current value data processing”. That is, when the candidate data processing unit 68 is used as the data processing unit 2, the data processing unit 2 does not require a response from the other data processing unit 2. Therefore, in FIG. 28, the arrow 77 connecting the candidate data processing unit 68 of “data collection data processing” and the candidate data processing 68 of “current value management data processing” is the editing area shown in FIG. At 71, it disappears.

  In step s87 after step s86, the candidate data processing combination verification unit 62 verifies whether the combination of the plurality of candidate data processing units 68 in the editing area 71 is correct. In the present embodiment, the candidate data processing combination verification unit 62 verifies whether the category 7 is duplicated in the responses managed by the plurality of candidate data processing units 68 displayed in the editing area 71. That is, the candidate data processing combination verification unit 62 verifies whether the category 7 of the response target category 66 shown in FIG. 24 overlaps with respect to the plurality of candidate data processing units 68 displayed in the editing area 71. In order to correspond to the system configuration as in the first embodiment, it is possible to verify whether the category 7 of the request target category 67 is duplicated.

  In addition to this verification, the candidate data processing combination verification unit 62 according to the present embodiment receives a response including the same category 7 in response to a request generated by the plurality of candidate data processing units 68 displayed in the editing area 71. Verify whether it is generated. That is, in the candidate data processing combination verification unit 62, in the plurality of candidate data processing units 68 displayed in the editing area 71, the category 7 of the response target category 66 shown in FIG. Verify whether it is. Thereby, when a plurality of candidate data processing units 68 after combination are used as a plurality of data processing units 2, the data processing unit 2 can reliably receive a response including the same category 7 as the request.

  In step s87, if it is determined that both are correct as a result of the above-described two verifications, the process shown in FIG. 25 ends, and if it is determined that any one of the two verifications is not correct. Advances to step s88. In step s88, the candidate data processing combination design unit 60 displays on the screen 70 that the combination is not correct, and then proceeds to step s82 to perform the same process as described above.

  Although the change of the candidate data processing unit 68 has been described in detail above, the addition of a new candidate data processing unit 2 is almost the same as the change, and will be briefly described below.

  When the search button 73 or the list button 74 is pressed, the candidate data processing combination design unit 60 displays all of the candidate data processing units 68 registered in the candidate data processing definition information 63 in the selection area 72. When one of the candidate data processing units 68 displayed in the selection area 72 is selected and the setting button 75 is pressed, the candidate data processing combination design unit 60 is selected. The candidate data processing unit 68 is added to the blank area of the editing area 71 and displayed. With this addition, the candidate data processing combination design unit 60 also adds an arrow 77 indicating the transmission direction when a new response is transmitted between the candidate data processing units 68. And the process similar to the process after step s86 is performed, and verification is performed by the candidate data processing combination verification part 62. FIG.

  FIG. 30 is a flowchart showing an operation in which the candidate data processing combination design unit 60 stores the design information performed by the above steps as the data distribution definition information 30 in the data distribution definition storage unit 5. This operation is performed after the candidate data processing unit 68 is combined in the candidate data processing combination design unit 60.

  When the registration button 76 displayed on the screen 70 is pressed in step s90, the candidate data processing combination design unit 60 selects a new data allocation stored in the data allocation definition storage unit 5 in step s91. Generation of the minute definition information 30 is started. Specifically, first, in step s92, the candidate data processing combination design unit 60 acquires a list of a plurality of candidate data processing units 68 displayed in the editing area 71. In step s93, candidate data processing combination design unit 60 assigns ID 31 to all acquired candidate data processing units 68.

  If the design for changing the candidate data processing unit 68 is performed before step s90, the candidate data processing combination design unit 60 changes the information to be the program file 32 in step s94. If the design for adding the candidate data processing unit 68 is performed before step s90, the candidate data processing combination design unit 60 determines that the program file 32, the response target category 34, and the request target in step s94. Information that becomes the category category 35 is added to the new data distribution definition information 30. Thereby, the data distribution definition information 30 is newly generated.

  In step s95, the candidate data processing combination design unit 60 stores the newly generated new data distribution definition information 30 in the data distribution definition unit 5 as the data distribution definition information 30. Thus, when the candidate data processing unit 68 is designed to be changed and the registration button 76 is pressed, the data processing unit 2 is changed.

  According to the monitoring control system 1 according to the present embodiment as described above, the data processing unit 2 that transmits and receives data to each other can be easily replaced with a data processing unit 2 equivalent to the data processing unit 2. In particular, when another data processing unit 2 has a function of stub data value management data processing, it is effective because the monitoring control system 1 can be tested without hardware such as the device 9.

  In this embodiment, regarding the plurality of data processing units 2 added and changed by the candidate data processing combination design unit 60, whether or not the category 7 included in the response generated by the plurality of data processing units 2 is duplicated. Since it is verified, it is possible to prevent one request from being transmitted to two or more data processing units 2. In addition, regarding the plurality of data processing units 2 added and changed by the candidate data processing combination design unit 60, does the category 7 included in the response generated by the plurality of data processing units 2 include the category 7 included in the request? To verify. Thereby, if the data processing unit 2 transmits a request, the data processing unit 2 can reliably receive a response including the same category 7 as the request.

  As mentioned above, although embodiment of this invention was disclosed and described in detail, the above description is only what illustrated the aspect which can apply this invention, and this invention is not limited to this. In other words, various examples corresponding to the described aspects can be considered without departing from the scope of the present invention.

  1 monitoring control system, 2 data processing unit, 3 data distribution unit, 4 interface, 5 data distribution definition storage unit, 7 categories, 7v virtual category, 9 devices, 50 timer execution unit, 54 category data, 54v virtual category data 60 candidate data processing association design department, 61 data processor billion, 62 candidate data processing association verification section, 68 candidate data processing section.

Claims (10)

A monitoring control system for monitoring and controlling a plurality of numerical data and a plurality of types of event data collected from input / output points of a plurality of devices,
A plurality of predetermined numerical data and the plurality of types of event data are grouped into a plurality of categories to generate a plurality of category data, a response including the category and the category data corresponding to the category, and a request including the category A plurality of data processing units to be generated;
A data distribution unit that transmits / receives the response to / from the plurality of data processing units via an interface and receives the request from the plurality of data processing units via the interface;
Each of the plurality of data processing units, when receiving the response from the data distribution unit, performs a predetermined process using the category data included in the response,
The data distribution unit
Based on the category included in the request received from the data processing unit of the request transmission source and the category included in the response received from the data processing unit of the response transmission source, the response is transmitted to the request transmission source. Monitoring control system that transmits to the data processing unit. The monitoring control system according to claim 1,
The plurality of data processing units process the numerical data collected from the input / output points,
The predetermined plurality of numerical data includes the collected numerical data and the processed numerical data,
The plurality of categories include a plurality of types of cycles and a plurality of types of events,
The plurality of data processing units are:
The plurality of predetermined numerical data are grouped for each type of period to generate the plurality of category data, and the plurality of types of event data are grouped for each type of event, and the plurality of category data is Generate a supervisory control system. The monitoring control system according to claim 1 or 2,
A data distribution definition storage unit for storing the plurality of data processes;
The monitoring and control system, wherein the data distribution unit starts and stops the plurality of data processing units stored in the data distribution definition storage unit via the interface. A monitoring control system according to any one of claims 1 to 3,
The plurality of categories included in the requests generated by the plurality of data processing units are different from each other,
A data distribution definition storage unit that associates and stores the plurality of data processing units and the plurality of categories;
The data distribution unit
When the request from the data processing unit of the request transmission source is received and the response from the data processing unit of the response transmission source is received, the plurality of categories included in the request and the response include A monitoring control system that determines whether or not the categories match each other, and transmits the response to one of the data processing units associated with the category when it is determined that they match. A monitoring control system according to any one of claims 1 to 4,
The data distribution unit
When the request is received from the request processing data processing unit, the request is transmitted to the plurality of data processing units,
The plurality of data processing units, when receiving the request from the data distribution unit by the request reception method of the interface, transmits only the response including the same category as the request to the data distribution unit. Supervisory control system. A monitoring control system according to any one of claims 1 to 5,
A timer execution unit that gives the category included in the request transmitted from the data processing unit of the request transmission source to the data distribution unit at a specified time;
The data distribution unit
When the category is given from the timer execution unit, the response including the same category as the category is acquired from the plurality of data processing units excluding the data processing unit of the request transmission source, and the response is received from the request A supervisory control system that transmits data to the data processor of the transmission source. A monitoring control system according to any one of claims 1 to 6,
The plurality of data processing units are:
One category data is grouped into a plurality of virtual categories to generate a plurality of virtual category data, a virtual response including the virtual category and the corresponding virtual category data is generated as the response, and the virtual category is A monitoring control system for generating a virtual request including the request as the request. A monitoring control system according to any one of claims 1 to 7,
A candidate data processing storage unit that associates and stores a plurality of candidate data processing units used as the plurality of data processing units and the category included in the response generated by the plurality of candidate data processing units;
A candidate data processing combination design unit in which a combination of the plurality of candidate data processing units is performed;
The candidate data processing association design department
It is possible to replace one candidate data processing unit of the plurality of candidate data processing units combined with another candidate data processing unit associated with the same category as the one candidate data processing unit, Supervisory control system. The monitoring control system according to claim 8,
In the combination of the plurality of candidate data processing units, while verifying whether there is an overlap in the category included in the response or the request generated by the plurality of candidate data processing units, and including the same category as the request A monitoring control system further comprising a candidate data processing combination verification unit that verifies whether a response is generated. A computer constituting a monitoring control system for monitoring and controlling a plurality of numerical data collected from input / output points of a plurality of devices and a plurality of types of event data. Grouping a plurality of types of event data into a plurality of categories to generate a plurality of category data, generating a response including the category and the category data corresponding to the category, and a request including the category;
(B) The data distribution unit receives the category included in the request received from the data processing unit of the request transmission source via the interface, and the received from the data processing unit of the response transmission source via the interface. Based on the category included in the response, transmitting the response to the data processing unit of the request transmission source via the interface;
(C) A monitoring control program that, when the request processing data processing unit receives the response, executes a predetermined process using the category data included in the response.

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