JP2001051716A - Supervisory and control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exert no adverse influence on other devices constituting a system even when functions of respective devices are changed or added by fetching and processing information gathered by respective supervisory and control module devices while a central supervisory and control unit controls the respective monitor module devices. SOLUTION: This supervisory and control system 1 is equipped with function module devices 3, a server station device 4 which concentrically control the function module device 3, etc. While the server station device 4 is made to control the respective function module devices 3 and also control the operation states of respective facilities as objects of supervisory control according to instructions from respective human interface devices 7, the respective function module devices 3 detects the operation states of the controlled facilities 2. The respective human interface devices 7 are made to display the detection results are stored on the server station device 4 and the states of the object facilities 2, the state of a network 5, the states of the respective function module devices, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supervisory control system for monitoring and controlling power reception and transformation of various facilities provided in buildings, etc., air conditioning monitoring control, lighting monitoring control, crime prevention monitoring control, disaster prevention monitoring control, and the like. In particular, the present invention relates to a monitoring and control system in which a plurality of autonomous function module devices are arranged around a central monitoring and control database device to improve system manufacturability, testability, and maintainability.

[0002]

2. Description of the Related Art Conventionally, as one of the monitoring control systems for monitoring power receiving and transforming various facilities provided in buildings and the like, air conditioning monitoring control, lighting monitoring control, crime prevention monitoring control, disaster prevention monitoring control, etc. A plurality of remote control station devices for performing a process of detecting a state of each monitored and controlled equipment, a process of controlling each monitored and controlled equipment, and a server station device for centrally managing each remote control station device; A human interface station device that is connected to the server station device and that displays the status of each monitored and controlled equipment that is centrally managed by the server station device; and a remote control station device, a server station device, and a human interface station device that each of these remote control station devices System including a network connecting the down device to each other is known.

In this monitoring and control system, a server station device controls each remote control station device in response to an instruction from a human interface station device, and controls each remote control station device while controlling the operation state of each monitored and controlled object facility. The control station device detects the operation state of each monitored and controlled equipment, accumulates the detection result in the server station apparatus, and causes the human interface station apparatus to display the state of each monitored and controlled equipment.

[0004]

However, such a conventional monitoring and control system has the following problems.

First, since each remote control station device is critically linked in accordance with the arrangement state, environmental condition, and the like of each equipment to be monitored and controlled, the operation status of each remote control station device and each remote control station device are controlled. The reliability of the system fluctuates according to the operating conditions of the interconnected networks.

[0006] For this reason, in a monitoring and control system in which continuous operation is one of the system requirements, not only has a significant negative point of fluctuation in reliability, but also a large amount of cost is required for service work after delivery of the system. There was a problem of causing trouble before.

Further, in the conventional monitoring and control system, when the function of each remote control station device is changed and the function of the system is changed or the function is added, the function of each remote control station device must be critically linked. Must.

For this reason, when changing the function of the system or adding the function, it is necessary to consider the influence on the existing function, and a system engineer having appropriate experience and skill can change the function and add the function. There is a problem that it is necessary to perform addition, and it is not easy to change the function of the system or add the function.

The present invention has been made in view of the above circumstances, and even if the function of each device constituting the system is changed or added.
It is possible to prevent adverse effects on other devices constituting the system, thereby improving the manufacturability, testability, and maintainability of the system, and dramatically improving the reliability of the entire system. Its main purpose is to provide a supervisory control system.

[0010]

In order to achieve the above object, according to the present invention, there is provided a system for monitoring and controlling facilities to be monitored and controlled, each having a function designated by a user program. A monitoring and control module device;
An information transmission network in which the monitoring control module devices are linked to each other to provide a plurality of functions; a process for controlling the monitoring control module devices via the information transmission network, which is centrally disposed; And a central monitoring control device for executing a process of taking in information collected by the control module device.

According to a second aspect, in the supervisory control system according to the first aspect, each of the supervisory control module devices includes:
When the function designated by the user program cannot be performed, another monitoring control module device connected to the information transmission network is made to perform processing.

According to a third aspect, in the supervisory control system according to any one of the first and second aspects, each of the supervisory control module devices downloads a user program from the central supervisory control device via the information transmission network. In addition, a function specified by the user program is obtained.

According to the first aspect, the plurality of supervisory control module devices are mutually linked by the information transmission network, and each supervisory control module device is controlled by the central supervisory control device connected to the information transmission network. Then, the information collected by each monitoring control module device is taken in and processed. As a result, even if the function of each device constituting the system is changed or added, the other devices constituting the system are not adversely affected, and the manufacturability, testability, and maintainability of the system are improved. To dramatically improve the reliability of the entire system.

According to the second aspect, when each monitoring and control module device cannot perform the function specified by the user program, the processing is performed by another monitoring and control module device connected to the information transmission network on behalf of the system. Even if one of the supervisory control module devices constituting the system goes down, the function of the supervisory control module device that has gone down is substituted for another supervisory control module device, and the monitoring and control of the facility to be monitored and controlled is continued. The manufacturability, testability, and maintainability of the system are improved, and the reliability of the entire system is dramatically improved.

According to the third aspect, each monitoring control module device downloads a user program from the central monitoring control device and secures the function specified by the user program. To dynamically switch the functions of the entire system, make significant changes in the monitoring and control details of the monitored and controlled equipment, and change, delete, and add each monitored and controlled equipment, and each monitoring and control module. Easily change, delete, or add devices.

[0016]

FIG. 1 is a block diagram showing an embodiment of a supervisory control system according to the present invention.

The monitoring and control system 1 shown in FIG. 1 is a monitoring and control target facility (MCO: Monitori).
ng / Control Object) 2, a plurality of functional module devices (RCS: Remote Control Station) 3 for performing a process of detecting each state of the monitored and controlled equipment 2 and a centralized management of each functional module device 3 Server station device 4, an information transmission network 5 interconnecting these functional module devices 3 and the server station device 4, an Ethernet (registered trademark) 6 connected to the server station device 4, and a connection to the Ethernet 6. A plurality of displays, such as the state of each monitored and controlled equipment 2 intensively managed by the server station device 4, while taking in necessary data by communicating with the server station device 4 at regular time intervals or as appropriate. Human Interface Station Device (HI
S: Human Interface Station) 7 and Ethernet 6
Printer (MPR: Message Printer) 8 connected to the printer and printing out messages and the like
And a hard copy printer (HPR) 9 for printing out the contents of the screen displayed on the human interface station device 7 and the like.
And

In response to an instruction from each human interface station device 7, the server station device 4 controls each functional module device 3 and controls the operation state of each monitored and controlled facility 2 while controlling each functional module device. The operation state of each monitored and controlled equipment 2 is detected by the device 3, the detection result is stored in the server station device 4, and the status of each monitored and controlled equipment 2 and the information transmission network 5 are transmitted to each human interface station device 7. And the status of each functional module device 3 are displayed.

As shown in FIG. 2, each of the functional module devices 3 is connected to the DB port 10 connected to the central monitoring and control database 18 of the server station device 4 via the information transmission network 5 and the information transmission network 5. A bypass port 11 connected to each of the other function module devices 3, an MCO port 12 connected to the monitored and controlled equipment 2 to be monitored and controlled by the own function module device 3, and a DB port 10 to the DB port 10. A DB communication processing unit 13 that communicates with the central monitoring control database 18 via
A bypass communication processing unit 14 for communicating with each of the other functional module devices 3 via the bypass port 11;
An MCO communication processing unit 15 that communicates with the monitored and controlled equipment 2 via the port 12, a standard program, and a user program downloaded from the central monitoring and control database 18 (custom functions specific to the functional module device 3). A user program area 16 used as a storage area such as a program that gives a standard monitoring input, a control output, and the like based on a standard program, a user program, and the like stored in the user program area 16. Processing for realizing the specific function, the DB communication processing unit 13, the bypass communication processing unit 14,
A standard function processing unit 17 is provided for performing processing for taking in processing data from the MCO communication processing unit 15, supplying processing data, and the like.

The functional module device 3 has the following functions and specifications.

<Functions and Specifications of Functional Module Device> (1) Function type Digital input / output: status change monitoring, ON / OFF control output Analog input / output: analog data monitoring and control output Integration counter: integration Value input • User-defined function: Used as a buffer for performing only calculations or as a program buffer for implementing a system-linked function.

(2) Number of points that can be monitored and controlled Each point has one input, one output, and one spare.

(3) Self-diagnosis function In particular, the function is determined on the central side because there is no regular access to the central monitoring control database.

(4) Network line-Receiving port: port for receiving data from the central supervisory control database or other function module-Transmission port: port for transmitting data to the central supervisory control database or other functional module-bypass Port: When a function module goes down
It has a bypass line so as not to bring down the information transmission network.

The functional module device 3 periodically downloads the user program stored in the central monitoring control database 18 of the server station device 4, stores the user program, and stores the stored user program. A process of acquiring one of sensor output signals or sensor output data output from the facility 2 to be monitored and controlled based on a preset standard program or the like and integrating it, or signal conversion. To generate a state detection signal or state detection data by performing designated processing, such as processing for requesting processing to another functional module device 3 or the like, and supplying this to the central monitoring control database 18, and While storing the control data output from the control database 18, this control Based on chromatography data, supervisory control equipment 2
Control. When the self-function module device 3 goes down, the bypass port 11 and the bypass communication processing unit 14
The monitoring target control equipment 2, the information transmission network 5, the adjacent functional module devices 3 and the like are connected to each other by using a bypass line constituted by the above, so that the monitoring control system 1 does not go down. Further, when the function of another functional module device 3 must be used, a sensor output from the monitoring target control equipment 2 using a bypass line constituted by the bypass port 11, the bypass communication processing unit 14, and the like. An output signal, sensor output data, or the like is transferred to another functional module device 3 for processing.

The server station device 4 is connected to each functional module device 3 via the information transmission network 5.
By performing a process of supplying a user program to each functional module device 3, a process of supplying new control data, a state detection signal indicating an operation state of each monitored and controlled object facility 2, a state detection data, and the like. A central monitoring control database 18 that performs designated processing and stores processing results, and stores a user program and various control commands in the central monitoring control database 18 based on instructions from the human interface station device 7. Server station (SVS: Server Station) 19 that supports processing to perform, processing to fetch each state detection signal, state detection data, and the like stored in the central monitoring control database 18 and supply it to the human interface station apparatus 7. And

In this case, the central monitoring and control database 18
As shown in FIG. 3, each of the plurality of RCS ports 20 connected to the DB port 10 of each functional module device 3 via the information transmission network 5 and each functional module via each RCS port 20 R to communicate with device 3
A plurality of HIS ports 22 connected to each human interface station device 7 via the CS communication processing unit 21 and the Ethernet 6;
HIS communication processing unit 23, which communicates with each human interface station device 7 via the HMI, a data update command (SQL) fetched by the HIS communication processing unit 23, and the RCS communication processing unit 21, control instructions, and state detection A database engine 24 for processing signals, status detection data, etc., a status detection signal output from each functional module device 3, a data storage area for storing status detection data, a central monitoring control configured as shown in FIG. A database table 27, a function type table 28 configured as shown in FIG. 5, an attribute definition table 29 configured as shown in FIG. 6, a user program table 30 configured as shown in FIG. Having a port address table 31 configured as described above and referenced by the database engine 24. While it is, and a database 25 for storing state detection signal output from the database engine 24, such as state detection data.

Further, the central monitoring and control database 18
The following attributes are retained for each function module.

<Attributes held by database> (1) Function type attributes Digital input / output, analog input / output, integration counter, user-defined (2) Attribute fields Process value attributes: current value, set value, monitoring upper limit,
Monitoring lower limit value, ... ・ Integrated value attribute: Time integrated value, daily integrated value, monthly integrated value, annual integrated value, ... ・ Digital value attribute: current status, scan status, signal type, ... ・ Device operation attribute: operation condition, Guidance No. ,
Monitoring category,... Set value operation attribute: Set value, output type, output point,... Healthy attribute: Functional module operation status value, timeout value,. It has a monitoring control function.

<Monitoring control function held by database> Monitoring function: Status monitoring, alarm monitoring, operation monitoring, analog value validity monitoring, analog value upper / lower limit monitoring, voice alarm / guidance function, set value deviation monitoring, equipment operation History monitoring, demand monitoring, intrusion monitoring, automatic patrol monitoring ・ CRT operation function: manual individual start / stop operation, individual setting operation,
Signboard, point parameter setting, password setting, 3 behavior device operation, group batch start / stop operation, schedule setting, table printing setting, file data change setting ・ CRT display function: graphic display, image / video display, list display, alarm Window display, point display, guidance window display, history display, custom screen display, playback display, trend display, tabular data display, histogram display, demand display, meter display ・ Automatic control function: schedule control, system interlock control, demand Control, reactive power control, self-generated load control, power failure recovery control, set value schedule control, outside air intake control, optimal start / stop control, power saving control, heat source number control, comfortable air conditioning control, fire air conditioning stop control, entrance / exit management Control ・ Record storage function: Message printing, list Characters, history printing, data storage, daily / monthly / annual report printing ・ Self-diagnosis function: system abnormality diagnosis, communication system abnormality diagnosis, peripheral device abnormality diagnosis And, the server station device 4 receives a download request from each functional module device 3. In each case, a user program specified for each functional module device 3 is selected from the user programs registered in advance, and the selected user program is supplied to the functional module device 3 that has issued the download request. Each time a status detection signal and status detection data are output from the device 3, they are captured and stored, and each time a data request is output from each human interface station device 7, Select the state detection data and supply it to the human interface station device 7, Also, each time a new control instruction is output from each human interface station device 7, the control data up to that time is updated, the control content of each functional module device 3 is changed, and the operation content of each monitored and controlled object facility 2 is changed. To change.

Next, the operation of this embodiment will be described in detail with reference to the explanatory views shown in FIGS.

First, when any one of the human interface station devices 7 is operated to input a start instruction to start monitoring and control of each monitored and controlled equipment 2, as shown in FIG. The route is supplied to the server station device 4 along the route of the interface station device 7 → the Ethernet 6 → the server station device 4, and a supervisory control start instruction is generated by the central supervisory control database 18 provided in the server station device 4, This is supplied to each functional module device 3 through a route of the server station device 4 → the information transmission network 5 → each functional module device 3.

As a result, an operation instruction signal is generated by the standard function processing unit 17 based on the standard program, the user program, and the like stored in the user program area 16 of each functional module device 3, and this is used as the standard function processing. Unit 17 → MCO communication processing unit 15 → MCO
It is supplied to the monitored and controlled equipment 2 via the path from the port 12 to the monitored and controlled equipment 2 and starts to operate.

Thereafter, as shown in FIG. 10, a sensor output signal or sensor output data is output from each monitored and controlled equipment 2, and this is monitored and controlled equipment 2 → MCO port 12 → MCO communication processing unit 15 → Standard function processing unit 1
7, the program is supplied to the standard function processing unit 17, and the standard program
A process specified by a user program or the like is performed, and a state detection signal or state detection data obtained by this is transmitted to the standard function processing unit 17 → DB communication processing unit 13 → DB port 10 → information transmission network 5 → server station. RCS port 20 of device 4 → RCS communication processing unit 2
The data is supplied to the database 25 via a path 1 → database engine 24 → database 25 and stored in the data storage area of the database 25.

At this time, when the sensor output signal output from the monitored and controlled equipment 2 or the standard function processing unit 17 of the functional module device 3 which has received the sensor output data is down, or when the monitored and controlled equipment 2 When the information transmission network 5 between the functional module device 3 and the server station device 4 that has taken in the sensor output signal or sensor output data output from the server station device 4 is disabled, or is stored in the user program area 16. When a process other than a process specified by a standard program, a user program, or the like must be performed, as shown in FIG. 11, the bypass communication processing unit 14 of the functional module device 3 → bypass port 11 → information transmission Network 5 → bypass port 11 of other functional module device 3 The sensor output signal or the sensor output data output from the monitored and controlled equipment 2 is supplied to the standard function processing unit 17 of the other function module device 3 through the bypass communication processing unit 14 → the standard function processing unit 17, The status detection signal or the status detection data obtained by this processing is converted into the standard function processing unit 17 of another functional module device 3 → the DB communication processing unit 13 → the DB port 1
0 → information transmission network 5 → RCS port 20 of server station device 4 → RCS communication processing unit 21 → database engine 24 → database 25
5 is stored in the data storage area.

In parallel with this operation, the presence / absence of communication of each functional module device 3 is analyzed by the server station device main body 19 of the server station device 4 which monitors the operation of each functional module device 3 for a predetermined time. As described above, when there is a functional module device 3 that does not output the status detection signal or the status detection data, the information transmission network 5 connecting the functional module device 3 or the functional module device 3 and the server station device 4 For example, it is determined that some trouble has occurred, and the determination result is registered in the database 25.

Further, any one of the human interface station devices 7 is operated to output a data request. As shown in FIG. 12, this is transmitted from the human interface station device 7 to the Ethernet 6 to the HI.
When the data is supplied to the database engine 24 along the route of the S port 22 → the HIS communication processing unit 23 → the database engine 24, the data storage area of the database 25 is accessed by the database engine 24 and specified by the data request. A state detection signal, state detection data, information on presence / absence of down of each functional module device 3 and the like corresponding to each facility 2 to be monitored and controlled are selected, and are selected from the database engine 24 → HIS communication processing unit 2.
3 → to the HIS port 22 → Ethernet 6 → human interface station device 7 The data is supplied to the human interface station device 7 which issued the data request,
A monitoring screen indicating the operating status of each functional module device 3, the operating status of the information transmission network 5, and the like is displayed.

Further, any one of the human interface station devices 7 is operated to output a control change request. As shown in FIG. 13, this is changed from the human interface station device 7 to the Ethernet 6 to the H.
In the route of IS port 22 → HIS communication processing unit 23 → database engine 24, the database engine 24
, The control change request is analyzed by the database engine 24, and one or a plurality of monitored and controlled equipment 2 whose control content needs to be changed among the monitored and controlled equipment 2 is selected. Then, new control data corresponding to each monitored and controlled object facility 2 is generated, and this is stored in the database engine 24 → RCS communication processing unit 2
1 → RCS port 20 → Information transfer network 5 → DB port 10 of function module device 3 → DB communication processing unit 13 → Standard function processing unit 17 The control data in the user program stored in the area 16 is updated, and an operation instruction signal is generated based on the updated control data.
It is supplied to the monitored and controlled equipment 2 through the route of the CO communication processing unit 15 → the MCO port 12 → the monitored and controlled equipment 2, and the operation content of the monitored and controlled equipment 2 is changed.

At this time, the functional module device 3 connected to the monitored and controlled equipment 2 whose operation content is to be changed
When the standard function processing unit 17 is down, or when the information transmission network 5 between the function module device 3 and the server station device 4 is disabled, or when the user of the function module device 3 When processing other than the processing specified by a standard program, a user program, or the like stored in the program area 16 must be performed, as shown in FIG. Among the functional module devices 3, another functional module device 3 having the same function or another functional module device 3 capable of performing a designated process is selected.

Thereafter, the new control data is transferred to the database engine 24 → RCS communication processing unit 21 → RCS port 20 → information transfer network 5 → DB port 10 of another functional module device 3 → DB communication processing unit 13 → supplied to the standard function processing unit 17 of the other function module device 3 that is not down or the other function module device 3 having the designated function via the route of the standard function processing unit 17 and The control data in the stored user program is updated, and an operation instruction signal is generated based on the updated control data. The operation instruction signal is transmitted from the standard function processing unit 17 to the bypass communication processing unit 1.
4 → Bypass port 11 → Information transfer network 5 → Bypass port 1 of functional module device 3 that is down or functional module device 3 that does not have the specified function
1 → bypass communication processor 14 → MCO communication processor 15
The data is supplied to the monitored and controlled equipment 2 via the path from the MCO port 12 to the monitored and controlled equipment 2, and the operation of the monitored and controlled equipment 2 is changed.

Further, in parallel with the above-described operation, every time a preset fixed time elapses, as shown in FIG.
A download request is generated by the standard processing function unit 17 of each functional module device 3, and the download request is generated by the standard processing function unit 17 → DB communication processing unit 13 → DB port 10 → information transmission network 5 → RCS of the server station device 4. In the route of port 20 → communication processing unit for RCS 21 → database engine 24, database engine 2
4, the database engine 24 accesses the database 25 to select a user program corresponding to the function assigned to the functional module device 3 that has issued the download request. RCS communication processing unit 21 →
RCS port 20 → information transmission network 5 → DB port 10 of functional module device 3 → DB communication processing unit 13 → standard function processing unit 17 Is updated.

As described above, in this embodiment,
The server station device 4 arranged at the center and the functional module devices 3 arranged around the server station device 4 are connected in a mesh by an information transmission network 5, and one of the functional module devices 3 has Alternatively, since a small number of functions are linked to provide a complicated function, one or a small number of function module devices 3 are selected when a system function is changed or a function is added. By simply changing the function, the function of the system can be changed, a function can be added, and the like, without affecting the other function module devices 3 constituting the system, thereby improving the manufacturability, testability, and maintenance of the system. Thus, the reliability of the entire system can be dramatically improved.

In this embodiment, since the function module device 3 is provided with a bypass function, even if any one of the monitoring control module devices 3 goes down, the function of the monitoring control module device 3 that has gone down is maintained. The monitoring and control of the monitored and controlled equipment 2 can be continued on behalf of another monitoring and control module device, thereby improving the manufacturability, testability, and maintainability of the system, and improving the reliability of the entire system. It can be dramatically improved.

Further, in this embodiment, the user program is downloaded from the server station device 4 to each functional module device 3 and the user program of each functional module device 3 is updated. 4, the function of each functional module device 3 can be dynamically switched and the function of the entire system can be switched by simply updating the user programs stored in the user program 4. Significant changes in the contents can be easily made, and changes, deletions, and additions of each monitoring-controlled object 2 and changes, deletions, and additions of each monitoring and control module device can be easily made.

Further, in the above-described embodiment, one functional module device 3
However, one or more functional module devices 3 may be connected to one monitoring and control target facility 2.

In this way, even when each functional module device 3 connected to one monitored and controlled equipment 2 is removed, the monitoring and control of the monitored and controlled equipment 2 is performed by the remaining functional module devices 3. Continue control,
The reliability and maintainability of the system can be further improved.

[0047]

As described above, according to the present invention, in the monitoring and control system according to the first aspect, even if the function of each device constituting the system is changed, the function is added, etc. The apparatus can be prevented from being adversely affected, whereby the manufacturability, testability, and maintainability of the system can be improved, and the reliability of the entire system can be significantly improved.

According to the second aspect of the present invention, even if one of the supervisory control module devices constituting the system goes down, the function of the supervisory control module device that has gone down is substituted for another supervisory control module device. The monitoring and control of the monitored and controlled equipment can be continued, whereby the manufacturability, testability, and maintainability of the system can be improved, and the reliability of the entire system can be dramatically improved.

According to the monitoring control system of the third aspect, the functions of each monitoring control module device can be dynamically switched to switch the functions of the entire system. In addition to making changes, it is possible to easily change, delete, and add each monitored and controlled equipment, and to change, delete, and add each monitoring and control module device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a monitoring control system according to the present invention.

FIG. 2 is a block diagram showing a detailed circuit configuration of the functional module device shown in FIG.

FIG. 3 is a block diagram showing a detailed circuit configuration of a central monitoring control database shown in FIG. 1;

FIG. 4 is an explanatory diagram showing a configuration of a central monitoring control database stored in the database shown in FIG. 3;

FIG. 5 is an explanatory diagram showing a configuration of a function type database stored in the database shown in FIG. 3;

6 is an explanatory diagram showing a configuration of an attribute definition table stored in a database shown in FIG.

FIG. 7 is an explanatory diagram showing a configuration of a user program table stored in a database shown in FIG. 3;

FIG. 8 is an explanatory diagram showing a configuration of a port address table stored in a database shown in FIG. 3;

FIG. 9 is an explanatory diagram showing a monitoring control start operation of the monitoring control system shown in FIG. 1;

FIG. 10 is an explanatory diagram showing a monitoring operation of the monitoring control system shown in FIG.

FIG. 11 is an explanatory diagram illustrating another monitoring operation of the monitoring control system illustrated in FIG. 1;

FIG. 12 is an explanatory diagram showing a display operation of the monitoring control system shown in FIG.

FIG. 13 is an explanatory diagram showing a control change operation of the monitoring control system shown in FIG. 1;

FIG. 14 is an explanatory diagram showing another control change operation of the monitoring control system shown in FIG. 1;

FIG. 15 is an explanatory diagram showing a download operation of the monitoring control system shown in FIG. 1;

[Explanation of symbols]

 1: Monitoring and control system 2: Monitoring and control target equipment 3: Functional module device (Monitoring and control module device) 4: Server station device (Central monitoring and control device) 5: Information transmission network 6: Ethernet 7: Human interface station device 8: Message Printer device 9: Hard copy printer device 10: DB port 10 11: Bypass port 12: MCO port 13: DB communication processing unit 14: Bypass communication processing unit 15: MCO communication processing unit 16: User program area 17: Standard function processing unit 18: Central monitoring and control database 19: Server station device body 20: RCS port 21: RCS communication processing unit 22: HIS port 23: HIS communication processing unit 24: Database engine 25: Database 27 : Central monitoring control database table 28: Function type table 29: Attribute definition table 30: User program table 31: Port address table

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H04L 12/28 H04Q 9/02 B 5K033 H04Q 9/00 301 G06F 9/06 420M 5K048 321 15/21 K 9/02 H04L 11/00 310Z F-term (reference) 5B034 BB11 CC01 DD08 5B049 CC03 CC45 DD05 EE56 FF02 FF09 GG04 GG07 5B076 BB06 EA17 5B089 GA11 GA23 GB02 JA34 JA35 JB14 KA13 KC13 KC28 LB10 LB14 MC09 DD090903 DD09 CC09 DD09 EA07 5K048 AA06 AA11 BA51 DA02 DC04 EB02 FB05 FC01 GA14 GB03 HA01 HA02 HA22

Claims (3)

[Claims] 1. A plurality of supervisory control module devices, each of which has a function designated by a user program, for monitoring and controlling a facility to be monitored and controlled, and a plurality of supervisory control module devices which are mutually linked to each other. An information transmission network having functions, and a centrally located information transmission network,
A supervisory control system, comprising: a central supervisory control device that executes a process of controlling each of the supervisory control module devices and a process of taking in information collected by each of the supervisory control module devices. 2. The supervisory control system according to claim 1, wherein each of the supervisory control module devices is connected to the information transmission network when the function specified by the user program cannot be executed. A surveillance and control system, wherein a device performs processing on behalf of the device. 3. The supervisory control system according to claim 1, wherein each supervisory control module device downloads a user program from the central supervisory control device via the information transmission network, and A monitoring and control system that obtains a function specified by a program.