JP2004078805A - Program monitoring device for plant controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a program monitoring device for a plant controller enabling an operator to retrieve a control logic figure of a target module quickly. <P>SOLUTION: A memorandum for points to be checked needed for the control logic figure displayed to a display device 1 is inputted from an input device 2. A memorandum preparation part 13 prepares a list including a sheet number and the memorandum for the points to be checked of the control logic figure to which the memorandum for the points to be checked is inputted and stores it in a data base 15. By the operator's request, the list of each control logic figure (module) with the memorandum for the points to be checked attached is displayed to the display device 1, the memorandum for the points to be checked is specified, and the control logic figure is displayed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a program monitoring apparatus for a plant controller that displays a control logic diagram for automatically generating a program for a plant controller for controlling a plant and monitors the program for the plant controller.
[0002]
[Prior art]
Various plants such as a rolling plant and a power plant are controlled using a computer. The computer that controls the plant is called a plant controller. The program of the plant controller automatically generates the load module from the control logic diagram at the operation function book level by the program creation device.
[0003]
To create an object program from a control logic diagram, the control logic diagram is input in the form of modules divided into sheets, and the compiler analyzes the control logic diagram to generate an intermediate source program. The intermediate source program is attached with the data corresponding to the device address (macro element) of the control logic diagram and the memory address for storing the object program of the plant controller, which are necessary for monitoring the operation of the control program on the control logic diagram. ing. The intermediate source program is analyzed by the linker to generate an object program that operates on the plant controller.
[0004]
Such automatic generation of an object program from a picture information control logic diagram is described in, for example, Japanese Patent No. 2927484.
[0005]
By the way, an object program divided into a large number of modules is displayed on a monitoring screen in the form of a control logic diagram to monitor the operation of the plant controller. Conventionally, the monitoring screen is specified by displaying a list of operation plans (modules) in the plant controller and specifying the target monitoring screen, specifying the page number (sheet NO) of the monitoring screen, or monitoring by the page feed button. The screen is switched.
[0006]
[Problems to be solved by the invention]
In the prior art, a monitoring screen is selected from a list of operation bills (modules), or the monitoring screen is switched by a page number or page feed button on the monitoring screen. However, the target plants have become larger and more complex, and the amount of operation bills (modules), that is, the number of monitoring screens has become enormous. There are thousands of monitoring screens.
[0007]
The operator confirms the operation of the execution program (object program) on the control logic diagram divided into such an enormous number of modules. To confirm the operation of the execution program, for example, after confirming the operation in the order of “XX circuit” → “XX circuit” → “△ circuit”, another route “XX circuit” starting from “XX circuit” → It is necessary to continuously monitor “× ○ circuit” → “Δ ○ circuit”.
[0008]
In such a case, follow the connectors attached to the monitoring screen and return to “△ × circuit” → “XX circuit” → “XX circuit” to switch the screen, or “NO circuit” sheet NO. It is necessary to switch the screen by directly specifying the sheet No. or by searching for a module of “XX circuit” in a large number of module groups from the module list.
[0009]
Therefore, it takes a lot of time for the operator to select the target monitoring screen, resulting in poor operability. In addition, the operator's thinking is interrupted while searching for the monitoring screen.
[0010]
The present invention has been made in response to the above-described points, and an object of the present invention is to provide a program monitoring device for a plant controller that allows an operator to quickly search a control logic diagram of a target module.
[0011]
[Means for Solving the Problems]
The feature of the present invention is that the operator inputs the confirmation item memo necessary for the control logic diagram displayed on the screen and enters the confirmation logic memo sheet number and the confirmation item memo. Create a list including the list of control logic diagrams (modules) to which confirmation item memos have been assigned at the request of the operator, specify the confirmation item memos from the list, and display the corresponding control logic diagrams It is in that.
[0012]
In the present invention, since the operator searches and displays the monitoring screen based on the confirmation memo attached to the control logic diagram during the thought process in which the operator confirms the operation of the execution program, the operator can quickly display the control logic diagram of the target module. You can search.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment of the present invention.
In FIG. 1, a display device (CRT) 1 displays a control logic diagram of a module monitored by an operator (not shown). The operator inputs an operation instruction of a control logic diagram displayed on the CRT 1 from the input device (mouse, keyboard, etc.) 2. The display of the CRT 1 is controlled by the display control unit 4 of the computer 3, and an operation instruction of the input device 2 is input to the input determination unit 5. The input determination unit 5 determines the content of the operation instruction.
[0014]
The module selection instruction input to the input determination unit 5 is added to the module selection unit 6. The module selection unit 6 retrieves the control logic diagram of the module instructed from the CAD database 7 and gives it to the display control unit 4 and the device extraction unit 8. The CAD database 7 stores a control logic diagram (control logic data) for each module for automatically generating an object program (execution program). The CAD database 7 stores several thousand control logic diagrams for each module in sheet units.
[0015]
The device extraction unit 8 extracts a device included in the control logic diagram selected by the module selection unit 6. The source file 9 stores a source program for automatically generating an object program. The source program of the source file 9 has data (memory address data) for associating a memory address in the execution program stored in the object file 22 of the plant controller 20 with the device of the control logic diagram.
[0016]
The device extraction unit 8 adds the extracted device and the memory address data of the device obtained from the source program of the source file 9 to the device data request unit 10. The device data request unit 10 transmits the device and memory address data to the plant controller 20 via the data input / output unit 11. Device data from the plant controller 20 is taken into the device data input unit 12 via the data input / output unit 11 and added to the display control unit 4.
[0017]
The confirmation item memo input to the input determination unit 5 is added to the memo creation unit 13. The memo creation unit 13 creates a list of confirmation item memos and sheet NOs and stores them in the memo database 15. When a memo display instruction is input from the input determination unit 5, the memo list selection unit 14 takes in a memo list from the memo database 15 and adds it to the display control unit 4.
[0018]
The plant controller 20 has a data input / output unit 21 and an object file 22. The object file 22 stores an object program (execution program) with a memory address.
[0019]
Next, the operation will be described.
In this configuration, the CAD database 7 stores a module control logic diagram 40 as shown in FIG. FIG. 2 includes devices of a NOT element 42 and an AND element 43, and has connectors 45, 46 and 47. The device number “1” is assigned to the NOT element 42, and the device number “2” is assigned to the AND element 43.
[0020]
In the control logic diagram 40, the sheet number 41 “SHT001” is given, and the connector numbers 45, 46 and 47 also have sheet numbers on the lower side. The connector 45 describes “SHT325”, the connector 46 describes “SHT400”, and the connector 47 describes “SHT002”.
[0021]
The NOT element 42 receives a signal from the connector 45 “SHT 325” and outputs a signal to the AND element 43. The AND element 43 receives a signal from the NOT element 42 and the connector 46 “SHT400” and outputs a signal to the connector 47 “SHT002”.
[0022]
On the other hand, the source file 9 stores data as shown in FIG. 3 as the source program of the control logic diagram 40 of FIG. The source program of the source file 9 has a sheet number, a device type, a device number, an input address 1, an input address 2, and an output address in FIG.
[0023]
Device No. The 1 NOT element 42 has an input address 1 of “XX001” and an output address of “XX002”. In addition, the device No. The AND element 43 of 2 has an input address 1 of “XX002”, an input address 2 of “XX003”, and an output address of “XX004”.
[0024]
The output addresses “XX002” and “XX004” of the source program stored in the source file 9 associate the NOT element 42 and the AND element 43 with the memory address in the execution program stored in the object file 22 of the plant controller 20. Data (memory address data).
[0025]
When a sheet NO (module selection instruction) of a control logic diagram of a module monitored by an operator (not shown) is input from the input device 2, it is input to the input determination unit 5. The input determination unit 5 determines the content of the operation instruction.
[0026]
The module selection instruction input to the input determination unit 5 is added to the module selection unit 6. The module selection unit 6 searches the control logic diagram of the sheet NO (module) instructed from the CAD database 7 and gives it to the display control unit 4 and the device extraction unit 8. The display control unit 4 displays the input control logic diagram on the display device 1. A control logic diagram as shown in FIG. 2 is displayed on the display device 1.
[0027]
The device extraction unit 8 extracts a device included in the control logic diagram selected by the module selection unit 6. Sheet No. In “SHT001”, device elements of the NOT element 42 and the AND element 43 are extracted. The device extraction unit 8 searches the source file 9 for the output addresses “XX002” and “XX004” of the extracted device elements 42 and 43.
[0028]
The device extraction unit 8 adds the memory addresses associated data “XX002” and “XX004” obtained from the extracted devices 42 and 43 and the source program of the source file 9 to the device data request unit 10. The device data request unit 10 transmits the device and memory address data to the plant controller 20 via the data input / output unit 11.
[0029]
The data input / output unit 21 of the plant controller 20 searches the memory address of the object file 22 designated by the data “XX002” and “XX004”, and transmits device data related to the devices 42 and 43. The device data transmitted by the data input / output unit 21 is taken into the device data input unit 12 via the data input / output unit 11 and added to the display control unit 4.
[0030]
The display control unit 4 displays the sheet number displayed on the display device 1. A control logic diagram of “SHT001” is displayed as shown in FIG. 6, for example.
[0031]
In FIG. 6, the solid line of the signal line represents the ON state, and the dotted line represents the OFF state.
[0032]
Specifically, it is in the following state.
The input address 1 “XX001” of the NOT element 42 is ON,
The output address “XX002” of the NOT element 42 is OFF,
The input address 1 “XX002” of the AND element 43 is OFF,
AND element 43 input address 2 “XX003” is ON,
The output address “XX004” of the AND element 43 is OFF,
Thus, the state of the execution program stored in the object file 22 is displayed on the control logic diagram. Note that these status displays are periodically updated.
[0033]
Sheet No. When the operation confirmation of “SHT001” is completed, the next control logic diagram is displayed on the display device 1. This operation will be described with reference to FIG.
[0034]
FIG. 5A shows a sheet No. shown in FIGS. Although “SHT001” is shown, the illustration is simplified and two connectors 60 and 64 are described.
[0035]
When the connector 60 is specified from the input device 2, the module selection unit 6 uses the module sheet NO “SHT002” described in the connector 60 as a search key to obtain a control logic diagram (picture information) of the corresponding module from the CAD database 7. The sheet number “SHT002” as shown in FIG. 5B of the selected module sheet given to the display control unit 4 is displayed on the display device 1. Reference numeral 61 in FIG. 5B denotes a connector.
[0036]
Similarly, when the connector 62 of the module of the sheet number “SHT002” shown in FIG. 5B is designated, the display screen is switched to the module of the sheet number “SHT003”. Reference numerals 63 and 64 in FIG. 5C denote connectors.
[0037]
The control logic diagram divided into modules in this way is monitored in the order of FIG. 5 (a) → (b) → (c).
[0038]
After monitoring in the order of FIG. 5 (a) → (b) → (c), the operation confirmation of the other routes (a), (d) and (e) starting from FIG. 5 (a) is the sheet of FIG. 5 (a). It is necessary to select a module of NO “SHT001”.
[0039]
For this purpose, the connector 63 is designated and the process returns to FIG. 5B, and the connector 61 is further designated and the process returns to FIG. 5A. However, when the number of (a), (b), and (c) increases, the operator's thinking is interrupted.
[0040]
In the present invention, the control logic diagram of the module shown in FIG.
[0041]
Assume that the control logic diagram of the module shown in FIG.
[0042]
The operator inputs “˜confirmation” which is a confirmation item memo from the input device 2. When a memo creation command is executed from the input device 2, the memo creation unit 13 displays a memo input screen. On the memo input screen, a window screen on which an operator can freely input memos is displayed. When the memo is input, the memo creating unit 13 stores the entered memo contents “to confirm” of the currently displayed module sheet NO “SHT001” in the memo database 15 as shown in FIG. .
[0043]
The memo database 15 stores confirmation item memos as shown in FIG. For example, the memo content “˜ON instruction” is input to the module sheet NO “SHT 215”, and the memo content “˜OFF instruction” is input to the module sheet NO “SHT 360”.
[0044]
Now, after switching the screens of the modules shown in FIGS. 5A, 5 B, and 5 C and monitoring the logic of the control program, the operator inputs a memo list display from the input device 2. When a memo list command is input from the input device 2, the memo list selection unit 14 searches the memo database 15 for a memo list as shown in FIG. 4B and adds it to the display control unit 4.
[0045]
A memo list as shown in FIG. 4B is displayed on the display device 1. The operator looks at the memo list and selects the confirmation item memo “˜confirm”. When the module sheet NO “SHT001” with the memo contents “˜confirm” is input, the control logic diagram shown in FIG. 5A is displayed on the display device 1 as described above. Thereafter, the operation check of the execution program of the module shown in FIGS. 5D and 5E is performed.
[0046]
In this way, the operation of the execution program (object program) of the plant controller is confirmed, but the control logic diagram is searched with the confirmation memo attached to the control logic diagram in the thought process in which the operator confirms the operation of the execution program. The operator can quickly search the control logic diagram of the target module.
[0047]
【The invention's effect】
In the present invention, since the operator searches and displays the monitoring screen by the confirmation memo attached to the control logic diagram during the thought process in which the operator confirms the operation of the execution program, the operator can quickly display the control logic diagram of the target module. You can search.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of the present invention.
FIG. 2 is an explanatory diagram of a control logic diagram.
FIG. 3 is an example data configuration diagram of a source file of a control logic diagram;
FIG. 4 is an example of a memo list table;
FIG. 5 is an explanatory diagram of display switching of a control logic diagram.
FIG. 6 is a display explanatory diagram of a control logic diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Display apparatus, 2 ... Input device, 3 ... Program maintenance tool (computer), 4 ... Display control part, 5 ... Input determination part, 6 ... Module selection part, 7 ... CAD database, 8 ... Device extraction part, 9 ... Source file, 10 ... Device data request section, 11, 21 ... Data input / output section, 13 ... Memo creation section, 14 ... Memo list selection section, 15 ... Memo database, 20 ... Plant controller, 22 ... Object file.

Claims (4)

A plant controller for controlling the plant by a program generated based on a number of control logic diagrams, a display device for changing and displaying a control logic diagram selected from the plurality of control logic diagrams according to the operating state of the program, and confirmation Memo creation means for creating a memo list including the sheet number and memo contents of the control logic diagram to which the item memo has been input, and the memo list displayed on the display device, and the selected confirmation items A program controller for a plant controller, comprising: display control means for displaying a control logic diagram with a memo on the display device. From a plant controller that controls a plant by a program generated based on a large number of control logic diagrams in module units, a CAD database that stores the large number of control logic diagrams, and a large number of control logic diagrams that are stored in the CAD database A display device that displays the selected control logic diagram in accordance with the operation state of the program, and a memo list that includes the sheet number and memo contents of the control logic diagram in which the confirmation memo is input And a display control unit for displaying the memo list on the display device and displaying a control logic diagram with the selected confirmation item memo on the display device. Program controller for plant controller. From a plant controller that controls a plant by a program generated based on a large number of control logic diagrams in module units, a CAD database that stores the large number of control logic diagrams, and a large number of control logic diagrams that are stored in the CAD database A display device that changes and displays device elements of the selected control logic diagram according to the operation state of the program, and a memo list that includes the sheet number and memo contents of the control logic diagram to which the confirmation memo is input A memo creating means for creating a table, a memo database for storing the memo list, and a display of the memo list on the display device, and a control logic diagram with the selected confirmation item memo attached to the display device. A plant controller characterized by comprising display control means for displaying Program monitoring device. A plant controller for controlling a plant by a program generated based on a large number of control logic diagrams in module units, an input device for inputting operation instructions, a CAD database for storing the large number of control logic diagrams, and stored in the CAD database Module selection means for retrieving a control logic diagram selected and designated from a large number of control logic diagrams, device extraction means for extracting device elements of the control logic diagram selected by the module selection means, and device extraction means A device for obtaining the program operation state data of the device elements extracted in step (b), and a display device for changing and displaying the device elements of the control logic diagram selected by the module selection means according to the program operation state of the plant controller; ,Confirmation A memo creating means for creating a memo list table including a sheet number and memo contents of the control logic diagram to which the item memo is input, a memo database for storing the memo list table, and the device in the display device Display control means for displaying elements by changing the elements according to the operating state of the program, displaying the memo list on the display device, and displaying a control logic diagram with the selected confirmation item memo on the display device A program controller for a plant controller, comprising:

Images