JP2017010147A - Process control program management system, process control program management method, and process control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of grasping an influence range of a process control influenced by a change content, at a time of changing a process control program, for a changed process control and an unchanged process control.SOLUTION: A process control program management system comprises: a before-change/after-change difference acquisition processing unit 311 comparing a before-change process control program with an after-change process control program and acquiring a difference result; a use destination search processing unit 312 searching a use destination of the after-change process control program from the acquired difference result on the basis of a correlation definition table 321 associating correlations for every process control type; and an influence range extraction processing unit 313 extracting an influence range of the process control program at a time of changing the process control program for every process control type from the acquired difference result and the searched use destination.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a process control program management technique, and more particularly to a management system and management method when a process control program is changed, and a process control system including the management system.

  In the field of the process industry, the process control program designer changes the design of the process control operation after the process control program designer knows the process control operation specifications before the change and the contents of the process control program. After changing the process control program, it is confirmed by checking the operation.

  As a technique related to the operation check of such a process control program, for example, there is Patent Document 1. In Patent Document 1, in order to efficiently check the soundness of the plant control software, the verification data is used in a simulated environment simulated by an environment simulation means that simulates an environment equivalent to the plant control device. A technique for performing verification of plant control software is described.

  Further, as a technique for assisting software object correction work, for example, Patent Document 2 is available. In Patent Document 2, a part including a specific keyword is extracted from a plurality of different types of software objects, and the parts where the same keyword is extracted among the extracted parts are associated with each other by correcting the software object. A technique for identifying the affected area is described.

Japanese Patent Laid-Open No. 10-307609 JP 2013-246644 A

  In the operation confirmation after changing the process control program as described above, the process control program designer needs to confirm and verify not only the process control operation to be changed but also the process control operation other than the change target. Therefore, it is desirable to be able to grasp the range of influence of the process control exerted by the change contents not only on the changed process control but also on the process control that has not been changed.

  Note that the above-described Patent Document 1 does not consider the influence range of process control exerted by the change contents of the process control program. In addition, Patent Document 2 described above specifies an influence range by paying attention to a specific keyword included in a software object, but does not specify an influence range of process control exerted by a change content when a program is changed. .

  An object of the present invention is to provide a technique capable of grasping the influence range of the process control affected by the change contents when the process control program is changed with respect to the changed process control and the unprocessed process control.

  The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  In one embodiment, the process control program management system includes a first processing unit that obtains a difference result by comparing the process control program before and after the change, and a difference result obtained by the first processing unit. Based on information that associates an interaction for each process control type, a second processing unit that searches for a usage destination in the changed process control program, a difference result obtained by the first processing unit, and the first A third processing unit that extracts, for each process control type, an influence range when the process control program is changed, from the usage destination searched by the two processing units;

  In one embodiment, the process control program management method includes: a first processing unit that compares the process control program before and after the change by the first processing unit to obtain a difference result; and a second processing unit that A second processing step of searching for a use destination in the process control program after the change based on information obtained by associating an interaction for each process control type from the difference result acquired in the first processing step; Third processing for extracting, for each process control type, an influence range when the process control program is changed, from the difference result acquired in the first processing step and the use destination searched in the second processing step by the processing unit. And a process.

  In one embodiment, the process control system is a process control system having an operation monitoring console, and the operation monitoring console has the same configuration as the process control program management system in the above-described embodiment (first embodiment). A processing unit, a second processing unit, and a third processing unit).

  The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

  According to one embodiment, it is possible to provide a technique that can grasp the range of influence of process control affected by the change contents when the process control program is changed with respect to the changed process control and the unprocessed process control.

It is a figure which shows an example of a structure of the process control system in one embodiment of this invention. It is a figure which shows an example of a structure of the process control program management system in one embodiment of this invention. FIG. 3 is a diagram showing an example of a pre-change / post-difference acquisition processing flow in the process control program management method in the process control program management system of FIG. 2. FIG. 3 is a diagram showing an example of a usage destination search process flow in the process control program management method in the process control program management system of FIG. 2. FIG. 3 is a diagram showing an example of an influence range extraction process flow in the process control program management method in the process control program management system of FIG. 2. FIG. 3 is a diagram showing an example of an influence range extraction result document in the process control program management method in the process control program management system of FIG. 2.

  In the following embodiments, when it is necessary for the sake of convenience, the description will be divided into a plurality of sections or embodiments. However, unless otherwise specified, they are not irrelevant and one is the other. There are some or all of the modifications, details, supplementary explanations, and the like. Further, in the following embodiments, when referring to the number of elements (including the number, numerical value, quantity, range, etc.), especially when clearly indicated and when clearly limited to a specific number in principle, etc. Except, it is not limited to the specific number, and may be more or less than the specific number.

Further, in the following embodiments, the constituent elements (including element steps and the like) are not necessarily indispensable unless otherwise specified and apparently essential in principle. Needless to say. Similarly, in the following embodiments, when referring to the shapes, positional relationships, etc. of the components, etc., the shapes are substantially the same unless otherwise specified, or otherwise apparent in principle. And the like are included. The same applies to the above numerical values and ranges.
[Outline of the embodiment]

  First, an outline of the embodiment will be described. In the outline of the present embodiment, as an example, the description will be given with the corresponding components, reference numerals and the like of the embodiment in parentheses.

  In one embodiment, the process control program management system compares a process control program before and after the change and acquires a difference result (before / after difference acquisition processing unit 311), A second search for the usage destination in the changed process control program based on the information (interaction definition table 321) that associates the interaction for each process control type from the difference result acquired by the first processing unit. Based on the difference obtained by the processing unit (use destination search processing unit 312), the first processing unit, and the use destination searched by the second processing unit, the range of influence when the process control program is changed is controlled by the process. And a third processing unit (influence range extraction processing unit 313) that extracts each type.

  In one embodiment, the process control program management method includes a first processing step (before / after difference acquisition processing before and after the change of the process control program) by the first processing unit comparing the before and after change of the process control program. : FIG. 3) and use in the process control program after the change based on the information obtained by associating the interaction for each process control type from the difference result acquired in the first processing step by the second processing unit. From the second processing step for searching the destination (use destination search processing: FIG. 4), the third processing unit, the difference result acquired in the first processing step, and the usage destination searched in the second processing step, And a third processing step (influence range extraction process: FIG. 5) for extracting the influence range when the process control program is changed for each process control type.

  In one embodiment, the process control system is a process control system having an operation monitoring console (operation monitoring console 1), and the operation monitoring console is a process control program management system in the above-described embodiment. (The 1st processing part, the 2nd processing part, and the 3rd processing part).

Hereinafter, an embodiment based on the outline of the above-described embodiment will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.
[One Embodiment]

A process control system, a process control program management system, and a process control program management method according to an embodiment will be described with reference to FIGS.
<Process control system>

  A configuration of a process control system according to an embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating an example of a configuration of a process control system according to an embodiment.

  The process control system in one embodiment includes an operation monitoring console 1 and process monitoring control devices 3 and 4. The operation monitoring console 1 and the process monitoring control devices 3 and 4 are connected by a communication line 10. The operation monitoring console 1 is a dedicated terminal having a control unit, a storage unit, a display unit, an input / output unit, and the like, and is configured to be able to use an external medium 11. The external medium 11 can be used in the general-purpose terminal 2 that is not connected to the communication line 10.

  The process monitoring control devices 3 and 4 are devices that control the progress of the chemical reaction in the reaction vessel 58 with the jacket 59 and perform process monitoring control for obtaining a product.

  A pipe 51 for supplying hot water / cold water to the jacket 59 is connected to the jacket 59. The pipe 51 is provided with a flow rate detection end 50 for detecting the flow rate of hot / cold water flowing through the pipe 51 and an adjustment valve 52 for adjusting the flow rate. Further, the jacket 59 is provided with a temperature detection end 56 for detecting the temperature of hot / cold water flowing into the jacket 59.

  The process monitoring control device 3 is connected to a flow rate detection end 50 and a control valve 52 installed in a pipe 51 that supplies hot / cold water to the jacket 59, and a temperature detection end 56 installed in the jacket 59.

  The reaction can 58 is connected to a pipe 55 for charging the raw material into the reaction can 58. The pipe 55 is provided with a flow rate detection end 53 for detecting the flow rate of the raw material flowing through the pipe 55 and a control valve 54 for adjusting the flow rate. Further, the reaction can 58 is provided with a temperature detection end 57 for detecting the temperature of the raw material flowing into the reaction can 58.

  The process monitoring control device 4 is connected to a flow rate detection end 53 and a control valve 54 installed in a pipe 55 for charging the raw material into the reaction can 58, and a temperature detection end 57 installed in the reaction can 58.

  In the process control system, the process monitoring control devices 3 and 4 include a flow rate detection end 53 and 50 installed in a pipe 55 for supplying raw materials to the reaction can 58 and a pipe 51 for supplying hot / cold water to the jacket 59, and a reaction can. 58 and the temperature detection ends 57 and 56 installed in the jacket 59 are monitored, the control valves 54 and 52 are controlled, the progress of the chemical reaction in the reaction can 58 is controlled, and the process monitoring control for obtaining the product is performed. I do.

  The process monitoring control devices 3 and 4 are connected to the operation monitoring console 1 via the communication line 10. The operation monitoring console 1 instructs the process monitoring control devices 3 and 4 on the control method and conditions of the operation device to be controlled. The process monitoring control devices 3 and 4 control the operation of the operating device in accordance with a control instruction from the operation monitoring console 1. In the example of FIG. 1, flow rate detection ends 53 and 50, temperature detection ends 57 and 56, and control valves 54 and 52 are shown as operating devices.

  The flow rate of the raw material flowing into the reaction can 58 and the flow rate of hot / cold water flowing into the jacket 59 detected by the flow rate detection ends 53 and 50 are taken into the operation monitoring console 1 via the process monitoring control devices 3 and 4. Those flow values are displayed on the display. The opening degree of the control valves 54 and 52 by the process monitoring control devices 3 and 4 is also displayed on the display of the operation monitoring console 1 via the communication line 10. Therefore, the operator can grasp the inflow situation of the raw material and hot / cold water to the reaction can 58 and the jacket 59 by monitoring the display screen of the operation monitoring console 1.

  Further, when the operator wants to manually control the opening degree of the control valves 54 and 52, the control can be performed from the operation monitoring console 1.

  In the field of the process industry using the process control system as described above, the demand for reducing the total maintenance cost of the process industry has been increasing day by day, the number of plant designers and operators has been reduced, and the range of work per person has been reduced. It tends to expand. In such a trend, when a process control designer newly constructs or modifies a process control, it is necessary that a desire to greatly improve work efficiency arises.

  In addition, the process control program designer changes the process control operation design after the process control program designer is familiar with the process control operation specifications and the process control program content before the change. After changing, check the operation. The process control program designer needs to confirm and verify not only the process control operation to be changed but also the process control operation other than the change target. This confirmation and verification work requires man-hours because each process control operation needs to be operated.

  In addition, when designing a process control operation or changing a process control program, it is necessary to thoroughly examine the contents of the change and to verify and confirm in advance the influence on other process control operations. Even in this case, the knowledge and know-how of the process control operation before the change depends on the individual ability of the process control program designer, such as the difference in recognition and the range of the process control operation to be confirmed. There were problems such as differences in the quality of later process control programs.

  Therefore, in the present invention, when changing the process control program, there is a method for comprehensively grasping and verifying the influence range of the changed process control and the unchanged process control with respect to the changed process control. The purpose is to provide.

  In order to achieve the above object, the following mechanism is provided in the process control system. By preparing information that associates the interaction for each process control type in advance and extracting the process control range that interacts from the difference result obtained by comparing the process control program before and after the change, The range of influence on all process controls is output in a panoramic format for each process control type.

  Since this invention is comprised as mentioned above, there exist the following effects. For example, in the field of process control systems, when a process control program is changed, it is possible to grasp and prove the process control influence range that the contents of the change have evenly, effectively and efficiently without depending on individual experience and know-how. Therefore, the work man-hours for changing the process control program are reduced, and the process control contributes to stable operation.

  In addition, for example, it is possible to provide a CSV (Computerized System Validation) document that is necessary when changing a process control program in a pharmaceutical plant, which significantly reduces the number of CSV-compatible man-hours when changing a process control program in a pharmaceutical plant. Contribute to that.

Hereinafter, a process control program management system that is a feature of the above-described process control system will be described in detail. Although details will be described later, the operation monitoring console 1 has a process control / graphic file group (after change) 201 and exchanges data with the external medium 11 having the process control / graphic file group (before change) 401. It can be carried out. The operation control console 1 and the process control / graphic file group 401 included in the external medium 11 constitute a process control program management system.
<Process control program management system>

  The configuration of the process control program management system in one embodiment will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of a configuration of a process control program management system according to an embodiment.

  The process control program management system according to an embodiment includes an operation monitoring console 1 and a process control / graphic file group 401 included in the external medium 11. The operation monitoring console 1 includes a control program construction unit 101, a process control / graphic file group 201, and a change management processing unit 301. The control program construction unit 101 and the change management processing unit 301 are configured as processing function units by software in the operation monitoring console 1. The process control / graphic file group 201 is configured in a storage unit in the operation monitoring console 1.

  The change management processing unit 301 includes a pre-change / post-change difference acquisition processing unit 311, a use destination search processing unit 312, an influence range extraction processing unit 313, and an interaction definition table 321. The process control / graphic file group 201 includes a loop control file 211, a sequence control file 212, an operating device control file 213, an alarm control file 214, and a graphic file 215.

  Furthermore, a difference result file 331 and a use destination result file 332 are also configured in the storage unit in the operation monitoring console 1 as processing results by the change management processing unit 301. Further, in the operation monitoring console 1, as a processing result by the change management processing unit 301, a control program management information document 333, an influence range extraction result document (influence range presence / absence list) 334, a control program difference document 335, a control program document (influence) Each document such as (range) 336 can be output from the output unit.

  The operation monitoring console 1 has a display unit as a display unit, a keyboard and a mouse as an input unit, a printer as an output unit, and the like as an extended storage unit in addition to an apparatus main body including a control unit and a storage unit. This is a dedicated terminal capable of using the medium 11. The external medium 11 can be used in the general-purpose terminal 2, and is, for example, a CD, a DVD, a USB memory, or the like.

  As shown in FIG. 2, the operation monitoring console 1 stores a process control / graphic file group 201 for process control and process operation monitoring. The process control / graphic file group 201 includes files such as loop control, sequence control, operating device control, alarm control, input / output control, product type management, form management, and graphics. Here, the loop control file 211 The sequence control file 212, the operation device control file 213, the alarm control file 214, and the graphic file 215 will be described as examples. Each of these files is a process control type program.

  Of the process control / graphic file group 201, the process control file group 202 excluding the graphic file 215 is loaded into the process monitoring control apparatus 3, and the process monitoring control apparatus 3 performs process monitoring control. Corresponding to FIG. 1, the process monitoring control device 3 receives signals from the flow rate detection end 50 installed in the pipe 51 for supplying hot / cold water to the jacket 59 and the temperature detection end 56 installed in the jacket 59. Monitoring and controlling the control valve 52 is performed.

  Similarly, in the process monitoring control device 4 in FIG. 1, the process control file group 202 is loaded into the process monitoring control device 4 and the process monitoring control device 4 performs process monitoring control. The process monitoring control device 4 monitors signals from the flow rate detection end 53 installed in the pipe 55 for supplying the raw material to the reaction can 58 and the temperature detection end 57 installed in the reaction can 58 to control the control valve 54. Perform process monitoring control.

  Further, in the operation monitoring console 1, the control program construction unit 101 can construct, edit, and change the process control / graphic file group 201.

  On the other hand, the process control / graphic file group 201 stored in the operation monitoring console 1 can be acquired from the external medium 11 by file dump at an arbitrary timing. The external medium 11 includes a loop control file 411, a sequence control file 412, an operation device control file 413, an alarm control file 414, and a graphic file 415 as a process control / graphic file group 401 corresponding to the process control / graphic file group 201. Stored.

  In the process control program management system according to the embodiment, a process control designer who designs an instrumentation system changes the process control or the graphic before changing the process control / graphic file group 201. Are stored in the external medium 11 and managed. Thus, the external medium 11 stores a process control / graphic file group 401 that is generation-managed for each process control change.

  For example, the process control designer saves the process control / graphic file group 201 to the external medium 11 by file dump before performing process control or graphic change. As a result, the process control / graphic file group 401 before the change is stored in the external medium 11.

  Thereafter, the process control designer uses the control program construction unit 101 based on the changed process control specifications, the loop control is the loop control file 211, the sequence control is the sequence control file 212, and the operating device control is the operating device control. The file 213, the alarm control construct an alarm control file 214, and the graphic construct a graphic file 215. These constructed files become the process control / graphic file group 201 after the change.

The input / output control, product type management, and form management described above can be similarly constructed. In addition to using the control program construction unit 101 of the operation monitoring console 1, the construction of these files can be performed by the general-purpose terminal 2. In this case, the file is changed on the general-purpose terminal 2, the changed file is stored in the external medium, and the changed file is loaded into the storage unit of the operation monitoring console 1 so that the changed file is stored. The process control / graphic file group 201 can be obtained.
<Process control program management method>

  In the process control program management method in the process control program management system shown in FIG. 2, an example of confirming the range of influence on other process control due to process control change will be described. Here, the loop control change will be described as an example with reference to FIGS. The sequence control change, operation device control change, alarm control change, and graphic change other than the loop control change are similarly performed.

  The process control designer saves the process control / graphic file group 201 to the external medium 11, and based on the changed process control specifications, the loop control file 211, the sequence control file 212, the operating device control file 213, the alarm control file After each of 214 and the graphic file 215 is constructed, the change management processing unit 301 of the operation monitoring console 1 confirms the range of influence on other process control due to the process control change.

  In the process control / graphic file group 201, a loop control file 211 is a program for loop control. The sequence control file 212 is a program for sequence control. The operating device control file 213 is a program for operating device control. The alarm control file 214 is a program for alarm control. The graphic file 215 is a program for graphics.

  The change management processing unit 301 of the operation monitoring console 1 includes a pre-change / post-difference acquisition processing unit 311, a use destination search processing unit 312, an influence range extraction processing unit 313, and an interaction definition table 321. ing.

  The before / after difference acquisition processing unit 311 compares the process control program before (process control / graphic file group 401) and after the change (process control / graphic file group 201) to obtain a difference result (difference result file 331). ).

  The use destination search processing unit 312 uses the difference result (difference result file 331) acquired by the pre-change / post-change difference acquisition processing unit 311 based on the interaction definition table 321 and uses it in the process control program after the change. It is the 2nd processing part which searches (use destination result file 332).

  The influence range extraction processing unit 313 uses the difference result (difference result file 331) acquired by the before / after change acquisition processing unit 311 and the usage destination (use destination result file 332) searched by the usage destination search processing unit 312. The third processing unit extracts the influence range (the influence range extraction result document 334) when the process control program is changed for each process control type.

  The interaction definition table 321 is information that associates an interaction for each process control type (loop control, sequence control, operating device control, alarm control, graphic).

  The change management processing unit 301 has an operation screen (display screen of the operation monitoring console 1), and various operations can be performed on the operation screen. Further, the screen of the change management processing unit 301 relates to processing such as processing results in the pre / post difference acquisition processing unit 311, the usage destination search processing unit 312, the influence range extraction processing unit 313, and the control program construction unit 101. It is also possible to display information.

Hereinafter, each process in the before / after difference acquisition processing unit 311, the usage destination search processing unit 312, and the influence range extraction processing unit 313 will be described.
<< Before / after difference acquisition processing flow >>

  The before / after difference acquisition processing flow in the before / after difference acquisition processing unit 311 will be described with reference to FIG. FIG. 3 is a diagram illustrating an example of a pre-change / post-difference acquisition processing flow.

  After arbitrarily selecting from the process control / graphic file group 401 stored and managed in the external medium 11 on the operation screen of the change management processing unit 301, the before / after difference acquisition processing unit 311 shown in FIG. The pre-change / post-difference acquisition process is performed along the flow shown in FIG.

  In the before / after difference acquisition process, first, the loop control file 411, the sequence control file 412, the operation device control file 413, and the alarm control file 414 of the process control / graphic file group 401 before the change are transmitted via the external medium 11. The graphic file 415 is read (step S501). In the example of FIG. 3, the loop control file 411 includes data items of loop 1 to loop n, and each includes data items of basic information, a program, and parameters. The basic information includes a tag (TAG) name, an instrument name, and the like.

  Subsequently, the loop control file 211, the sequence control file 212, the controller control file 213, the alarm control file 214, and the graphic file 215 of the process control / graphic file group 201 after the change in the operation monitoring console 1 are read (step S1). S502). In the example of FIG. 3, the loop control file 211 includes data items of loop 1 to loop n, and each includes data items of basic information, a program, and parameters.

  Here, as the target file to be read, any control type designated at the start of execution on the operation screen of the change management processing unit 301 can be selected.

  Then, the contents of the files before / after the change are compared, and the difference result is stored in the difference result file 331 (step S503). The information stored in the difference result file 331 is all data types handled by process control for basic information, programs, and parameters for each process control type detected as a difference. Furthermore, unique information (keycode) indicating the data type is added, and information such as instrument number, before change, after change, and the like is stored. The instrument shown in FIG. 3 and subsequent figures is synonymous with an operating device and equipment.

  In the example of FIG. 3, the difference result file 331 includes No, keycode, instrument No, data items before and after the change. For example, in No1, an instrument having a keycode “DDC000101” and an instrument No “001” is “TIC0001” before the change, and is changed to “TIC0002” after the change. Others are as shown in FIG.

The processing in the pre-change / post-difference acquisition processing unit 311 can also operate for the input / output control, product type management, and form management described above. That is, in this process, it is possible to grasp the process control information to be changed.
<< Use destination search processing flow >>

  The use destination search processing flow in the use destination search processing unit 312 will be described with reference to FIG. FIG. 4 is a diagram illustrating an example of a usage destination search process flow.

  After the end of the process in the before / after difference acquisition processing unit 311 described above, the usage destination search processing unit 312 shown in FIG. 2 performs the usage destination search processing along the flow shown in FIG.

  In this use destination search process, first, the difference result file 331 stored by the before / after difference acquisition processing unit 311 is read (step S511).

  Subsequently, the interaction definition table 321 defined by associating the interaction with each process control type is read to acquire information to be searched (step S512). Here, the interaction information defined in the interaction definition table 321 covers all data types handled by process control and is defined as unique information (keycode). If each data type is changed, process control is performed. And all process control / graphic search objects that affect the graphic.

  In the example of FIG. 4, the interaction definition table 321 includes keycode, loop control,..., Graphic data items. Further, each of loop control,..., Graphic includes data items of programs and parameters. For example, when the keycode is “DDC000101”, “X1”, “X5”, “X9” of the program in the loop control and “Y6” of the parameter,..., “X2” of the program in the graphic and “Y1” of the parameter “ Y2 ”are related to each other. Others are as shown in FIG.

  The unique information (keycode) stored in the difference result file 331 and the unique information (keycode) defined in the interaction definition table 321 indicate the same data type and are associated with each other.

  Then, based on the information to be retrieved obtained from the interaction definition table 321, the loop control file 211 and the sequence control file 212 of the process control / graphic file group 201 after the change in the operation monitoring console 1. The usage destination in the operation device control file 213, the alarm control file 214 and the graphic file 215 is searched, and the obtained usage destination result is stored in the usage destination result file 332 (steps S513 and S514).

  Information stored in the use destination result file 332 includes unique information (keycode) indicating the data type and search data, a use instrument No. in each process control / graphic, a graphic page No., and the like. As a search destination, the above-described input / output control, product type management, and form management are also possible.

  In the example of FIG. 4, the usage result file 332 includes data items of keycode, search data, and usage destination. Further, the use destination includes loop control,..., Graphic data items. For example, when the keycode is “DDC000101” and the search data is “X1, X5, X9, Y6”, the usage destination is “instrument No: 001, 002,...”,. , ... " Others are as shown in FIG.

In addition, even when information that does not directly affect the process control operation, for example, a tag (TAG) name or the like is changed, it is difficult for the process control designer to notice by searching the information defined in the interaction definition table 321. The range of influence can be obtained. That is, in this process, as the process control using various data of the changed process control, it is possible to grasp the changed process control information as well as the changed process control information.
<< Influence Area Extraction Process Flow >>

  The influence range extraction processing flow in the influence range extraction processing unit 313 will be described with reference to FIG. FIG. 5 is a diagram illustrating an example of an influence range extraction process flow.

  After the end of the process in the use destination search processing unit 312 described above, the influence range extraction process is performed in the influence range extraction processing unit 313 shown in FIG. 2 along the flow shown in FIG.

  In this influence range extraction process, first, the difference result file 331 stored in the pre-change / post-difference acquisition processing unit 311 is read (step S521).

  Next, the usage result file 332 stored in the usage destination search processing unit 312 is read (step S522).

  Then, the influence range determination / extraction is performed based on the difference result file 331 and the use destination result file 332 (step S523). In this influence range determination / extraction, first, information indicating that the process control type / graphic-specific instrument number / graphic page obtained in the difference result file 331 is changed in the influence range determination / extraction result 525 is “present”. . In other words, it is possible to obtain information that enables a comprehensive overview of the changed instrument / graphic or the unchanged instrument / graphic for all instruments or all graphic pages for all process control types.

  Subsequently, based on the search data for each process control type / graphic obtained in the use destination result file 332, the use instrument No. of the search data and whether the search data exists in the difference result file 331 are extracted. . Here, if the search data does not exist in the difference result file 331, information on the influence “present” is stored in the influence range determination / extraction result 525 for the instrument number / graphic page in which the search data is searched. To do. That is, it is possible to obtain information that enables a comprehensive overview of the instruments / graphic pages that are affected or are not affected by the change in other process controls for all the instruments or graphic pages for each process control.

  In the example of FIG. 5, the influence range determination / extraction result 525 includes data items of instrument number, change, and influence in the loop control. For example, a meter whose meter number is “001” has a change of “Yes” and an influence of “Yes”. This is a changed instrument and is affected by changes in other process controls. Others are as shown in FIG.

  Then, after the determination / extraction of the influence range of all the process control types / graphics is completed, the control program management information document 333, the influence range extraction result document 334, and the control program are obtained based on the obtained influence range determination / extraction result 525. The difference document 335 and the control program document 336 are output (step S524).

  The control program management information document 333 is a document including a time stamp of the control program. The influence range extraction result document 334 is a document showing a list of presence / absence of influence ranges as shown in FIG. The control program difference document 335 is a document indicating a difference between control programs. The control program document 336 is a document indicating the contents of the control program.

These output documents can be provided as CSV correspondence documents necessary when changing a process control program in a pharmaceutical plant, for example. In particular, in a pharmaceutical plant, it is necessary to prove the range of influence of process control exerted by a change content when a process control program is changed, which can contribute to this proof. Moreover, it can also contribute to significantly reducing the man-hours for CSV when changing the process control program in the pharmaceutical plant.
<< influence area extraction result document >>

  The influence range extraction result document output by the influence range extraction processing unit 313 will be described with reference to FIG. FIG. 6 is a diagram illustrating an example of an influence range extraction result document. FIG. 6 shows an influence range extraction result document 601 in the loop control example, and a part (No. 001 to 016) is enlarged.

  The influence range extraction result document 601 is described covering all the loop control instruments. No of 611 shows instrument No. The item of change is “present” when the meter is a change target meter, and is “−” when the meter is not a change target meter (non-change target meter). The item of influence is “Yes” when there is an influence from another changed instrument, and “−” when there is no influence from another changed instrument. In the example of FIG. 6, “−” is described when there is no influence from other changing instruments when the instrument is not a change target instrument. This makes it easier to see.

  For example, instrument No. 612 indicates that the process control has been changed, and the change is “present”. This instrument No. 001 indicates that the changed contents of other process control are used and the influence is “present”.

  Similarly, instrument No. 613 is a target for which process control has been changed, but the changed contents of other process control are not used and are not affected by the other process control change (the change is “present” ", The impact is"-"). An instrument No. 614 indicates that it is not a process control change target instrument, and is not affected by other process control change contents (change is “−”, impact is “−”). Instrument No. 615 of 615 indicates that it is affected by the contents of other process control changes even though it is not a process control change target instrument (change is “−”, impact is “present”).

That is, the process control designer can comprehensively grasp whether the changed process control has an influence on other process controls or not, as well as the changed process control.
<Effect>

  According to the process control system, the process control program management system, and the process control program management method in the embodiment described above, the process control and the change that have changed the scope of influence of the process control affected by the change contents when the process control program is changed It is possible to provide a technology that can be grasped for process control that is not performed. That is, according to one embodiment, in the field of process control systems, when the process control program is changed, the range of influence of the changed process control content is not only the affected process control but also the unaffected process. Since control can be easily grasped from a bird's-eye view, the process control range to be subjected to operation verification is clarified, and the work man-hours are reduced. In addition, it is possible to provide a CSV-compliant document in a pharmaceutical plant, which has the effect of greatly reducing the man-hours for CSV. More details are as follows.

  (1) The process control program management system includes a pre-change / post-change difference acquisition processing unit 311, a usage destination search processing unit 312, and an influence range extraction processing unit 313. First, the before / after difference acquisition processing unit 311 compares the process control program before and after the change and acquires the difference result. Subsequently, the use destination search processing unit 312 uses the difference result acquired by the before / after difference acquisition processing unit 311 based on the interaction definition table 321 that associates the interaction for each process control type. Searches where the process control program is used. Then, the influence range extraction processing unit 313 calculates the influence range when the process control program is changed from the difference result acquired by the before / after difference acquisition processing unit 311 and the usage destination searched by the usage destination search processing unit 312. Extracted for each process control type. As a result, when changing the process control program, the influence range of the process control affected by the change contents can be grasped and proved evenly, effectively and efficiently without depending on the personal experience and know-how.

  (2) The process control type includes loop control, sequence control, operating device control, alarm control, and graphics, so that the range of influence of process control program changes on various process controls is comprehensively determined. be able to. This process control type can further include input / output control, product type management, form management, and the like.

  (3) By including the program, parameter, and device name in the change contents of the process control program, it is possible to determine the influence range using these change contents as the change points.

  (4) Information of the difference result file 331 acquired by the before / after difference acquisition processing unit 311, information of the usage result file 332 searched by the usage destination search processing unit 312, and information of the interaction definition table 321 are as follows: Since the unique information indicating the data type is added and associated, the influence range when the process control program is changed can be extracted using the unique information.

  (5) The influence range extraction processing unit 313 can output, as the influence range extraction result document 334, the result of extracting the influence range at the time of changing the process control program for each process control type. In addition, a control program management information document 333, a control program difference document 335, and a control program document 336 can be output. By outputting these documents and providing them to the client, it is possible to prove the influence range of the process control exerted by the change contents when the process control program is changed.

  (6) In the operation monitoring console 1, the process control / graphic file group 401 before the change is read from the external medium 11 to the before / after difference acquisition processing unit 311 in the operation monitoring console 1, and the process after the change The control / graphic file group 201 is read from the storage unit in the operation monitoring console 1 into the pre-change / post-difference acquisition processing unit 311 so that the pre-change / post-difference acquisition processing unit 311 before the process control program is changed. And the changed result can be compared to obtain a difference result.

  (7) By having the control program construction unit 101 in the operation monitoring console 1, the process control program can be changed.

  (8) By having a display screen on the operation monitoring console 1, processing in the before / after difference acquisition processing unit 311, the use destination search processing unit 312, the influence range extraction processing unit 313, and the control program construction unit 101 Information about can be displayed.

  (9) The external medium 11 can store a process control program whose generation is managed for each change by the control program construction unit 101.

  (10) The process monitoring program after the change stored in the storage unit in the operation monitoring console 1 is loaded into the process monitoring control devices 3 and 4 so that the process monitoring control devices 3 and 4 perform process monitoring. Control can be performed.

  (11) The process monitoring control devices 3 and 4 can monitor and control the operation devices such as the flow rate detection ends 53 and 50, the temperature detection ends 57 and 56, and the control valves 54 and 52.

  (12) In the process control program management method, before / after difference acquisition processing by the before / after difference acquisition processing unit 311, use destination search processing by the use destination search processing unit 312, and influence by the influence range extraction processing unit 313 By having each process step of the range extraction process, it is possible to grasp, and prove, in a uniform, effective and efficient manner, the range of influence of the process control affected by the change contents when the process control program is changed.

  (13) In the process control system, the operation monitoring console 1 includes the pre-change / post-difference acquisition processing unit 311, the use destination search processing unit 312, and the influence range extraction processing unit 313, thereby enabling a process control program At the time of a change, it is possible to grasp and prove a uniform, effective, and efficient process control influence range affected by the change contents.

  (14) The operation monitoring console 1 can use the external medium 11, and the external medium 11 can store a process control program whose generation is managed for each change.

  (15) Since the process control system includes the process monitoring control devices 3 and 4, the changed process control program stored in the storage unit in the operation monitoring console 1 is loaded into the process monitoring control devices 3 and 4. As a result, the process monitoring control devices 3 and 4 can perform process monitoring control.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in the above-described embodiment, it has been described as an example that it is possible to provide a CSV-compliant document in a pharmaceutical plant. However, the present invention is not limited to this, and includes chemicals, medicines, foods, energy, water treatment, It can be applied to process control systems in various fields such as the environment.

  Further, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the described configurations. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of the embodiment.

DESCRIPTION OF SYMBOLS 1 Operation monitoring console 2 General-purpose terminal 3, 4 Process monitoring control apparatus 10 Communication line 11 External medium 50, 53 Flow rate detection end 51, 55 Pipe 52, 54 Control valve 56, 57 Temperature detection end 58 Reaction can 59 Jacket 101 Control program Construction unit 201 Process control / graphic file group 202 Process control file group 211 Loop control file 212 Sequence control file 213 Controller control file 214 Alarm control file 215 Graphic file 301 Change management processing unit 311 Before / after difference acquisition processing unit 312 Use Destination search processing unit 313 Influence range extraction processing unit 321 Interaction definition table 331 Difference result file 332 Use destination result file 333 Control program management information document 334 Influence range extraction result document 335 Control program Ram differential document 336 control program documentation 401 Process Control / graphic files 411-loop control file 412 sequence control file 413 manipulator control file 414 alarm control file 415 graphic file

Claims (15)

A first processing unit that obtains a difference result by comparing the process control program before and after the change;
From the difference result acquired in the first processing unit, a second processing unit that searches for a usage destination in the changed process control program based on information that associates an interaction for each process control type;
A third processing unit that extracts, for each process control type, an influence range when the process control program is changed, from the difference result acquired by the first processing unit and the usage destination searched by the second processing unit;
A process control program management system. In the process control program management system according to claim 1,
The process control program management system includes loop control, sequence control, operating device control, alarm control, and graphics in the process control type. In the process control program management system according to claim 1,
The process control program management system, wherein the change contents of the process control program include a program, a parameter, and a device name. In the process control program management system according to claim 1,
The information on the difference result acquired by the first processing unit, the information on the usage destination searched by the second processing unit, and the information associated with the interaction for each process control type are unique information indicating the data type. A process control program management system that is added and associated. In the process control program management system according to claim 4,
The third processing unit outputs, as a document, a result of extracting the influence range when the process control program is changed for each process control type,
The process control program management system, wherein the document describes whether or not there is a change indicating whether or not it is a change target, and whether or not there is an influence from another change target. In the process control program management system according to claim 1,
The first processing unit, the second processing unit, and the third processing unit are included in an operation monitoring console that constitutes a process control system,
The process control program before the change is read from an external medium into the first processing unit in the operation monitoring console.
The process control program management system in which the changed process control program is read into the first processing unit from a storage unit in the operation monitoring console. In the process control program management system according to claim 6,
A process control program management system, wherein the operation monitoring console has a control program construction unit for changing the process control program. In the process control program management system according to claim 7,
The process control program management system, wherein the operation monitoring console has a screen for displaying information regarding processing in the first processing unit, the second processing unit, the third processing unit, and the control program construction unit. In the process control program management system according to claim 8,
A process control program management system in which the external medium stores a process control program whose generation is managed for each change by the control program construction unit. In the process control program management system according to claim 9,
The changed process control program stored in the storage unit in the operation monitoring console is loaded into a process monitoring control device constituting the process control system, and the process monitoring control by the process monitoring control device is performed. Process control program management system. In the process control program management system according to claim 10,
The process monitoring control device is a process control program management system for monitoring and controlling an operating device. A first processing step for obtaining a difference result by comparing the process control program before and after the change by the first processing unit;
A second processing unit searches for a usage destination in the changed process control program based on information obtained by associating an interaction for each process control type from the difference result acquired in the first processing step. Processing steps;
A third processing unit extracts an influence range when the process control program is changed for each process control type from the difference result acquired in the first processing step and the use destination searched in the second processing step. 3 processing steps;
A process control program management method comprising: A process control system having an operation monitoring console,
The operation monitoring console is
A first processing unit that obtains a difference result by comparing the process control program before and after the change;
From the difference result acquired in the first processing unit, a second processing unit that searches for a usage destination in the changed process control program based on information that associates an interaction for each process control type;
A third processing unit that extracts, for each process control type, an influence range when the process control program is changed, from the difference result acquired by the first processing unit and the usage destination searched by the second processing unit;
Having a process control system. The process control system according to claim 13.
The operation monitoring console can use an external medium,
The process control system, wherein the external medium stores a process control program whose generation is managed for each change. The process control system of claim 14, wherein
It further has a process monitoring control device that monitors and controls the operation device,
The process control system in which the changed process control program stored in the storage unit in the operation monitoring console is loaded into the process monitoring control apparatus, and the process monitoring control is performed by the process monitoring control apparatus.

Images