JPH03223782A - Simulation data generating device - Google Patents

Abstract

PURPOSE:To carry out tests, etc., repeatedly in the same condition by utilizing timing period data and simulation state retaining/starting instruction data. CONSTITUTION:A simulation state control part 12 which judges simulation state retaining/starting instruction 4c and transmits the instruction data 12a of state retain or retaining release to a simulation updating processing part 8 is provided. Furthermore, a timing period adjustment part 13 which extracts the timing period of PID from control data 11a which is extracted from a simulation control data extraction part 11, carries out renewal and adjustment of the simulation data, and after the timing period is passed, transmits that PID simulation control data to the simulation updating processing part 8. Thus, the starting, delaying, and holding of the simulation based on the data which instructs the retaining or starting of the simulation state and the timing period which is able to be set for each point of plant input can be carried out. Therefore, the testing can be carried out in the same way as when an actual plant is utilized.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Field of Industrial Application) The present invention relates to a plant control device, etc. that monitors and controls plant conditions in various control plants such as a thermal power plant and the like. The present invention relates to a simulation data generation device that generates signals simulating state signals of various parts of a plant that are input to a plant control device or the like in order to verify the behavior of a plant.

(Prior art) In order to check the operating status of various functions of a plant control device, such as whether it operates normally and its response characteristics, signals corresponding to the signals of each part of the plant are artificially created as test signals. It is necessary to input this into the plant control device. A conventional example of a simulation data generating device for generating such a signal is shown in FIG.

In FIG. 6, simulation data information for generating signals for each part of the plant is input from the input/output device 1.

This simulation data information includes the control data necessary to create a signal corresponding to each PID, which is an identification name assigned to each plant input point, and the control data to each processing group such as the system of each part in the plant and various functions. It consists of operation instruction data for dividing the data into different types. The control data consists of a PID name, a value representing the state of the PID (ONloF or 110), a value representing the analog amount of the PID (initial value, target value, fixed value, variable range, rate of change), and the like. Further, the operation instruction data includes a file number for dividing the control data into processing groups.

These simulation data information inputted from the input/output device M1 are processed by the simulation input section 2, and
The control data 2a is stored in the simulation data temporary storage section 3.
The input is held sequentially. File number 2b, which is operation instruction data, is in the simulation operation instruction data section 4.
is input. The control data 3a for each PID input to the simulation data temporary storage section 3 is taken out to the file simulation registration processing section 5, where it is divided into each processing group, and the file from the simulation operation instruction data section 4 is stored for each group. After being assigned a number 4a, it is stored in the file simulation data registration device 6. In this way, the simulation data for generating signals for each part of the plant is organized into files, and the file simulation data registration processing unit 5
will be saved in

Next, when generating simulation signals for each part of the plant based on the simulation data stored in the file simulation data registration processing section 5, operation instruction data is first inputted from the input/output device 1. The simulation operation instruction data section 4 outputs a file number 4b to the file simulation execution processing section 7 based on the data input from the simulation data input processing section 2.

Thereby, the file simulation execution processing unit 7 extracts the control data 7a corresponding to the file number using the file simulation data registration device 6, and stores it in the simulation data temporary storage unit.

The simulation data update processing unit 8 sequentially retrieves the control data 3b for each PID from the simulation data temporary storage unit 3, and changes the state depending on the type of PID (contact input, analog input, pulse input, etc.), for example, when it is a contact input. When using analog input, the signal is calculated from a fixed value or value in the variable range and the rate of change, and when using pulse input, the signal is calculated from the rate of change or the value in the variable range and the rate of change, using a plant control device, etc. It is set chronologically in the database 9, which is the data area to be used. At this time, the signal having the amount of change is updated at regular intervals in the simulation data update processing section 8 until it reaches the target.6 (Problem to be Solved by the Invention) In the above conventional device, the signal is stored in one file. P that can be
There are many IDs. All of these PID control data are temporarily held in the simulation data temporary storage unit, and then are sequentially retrieved one by one by the simulation data update processing unit 8 at the same time as the simulation signal output starts.
There, the data is generated and processed into a simulation signal.
Output to base 9. However, it takes time to transfer data from the simulation data temporary storage section to the simulation data update processing section 8, and a timing difference occurs between each PID signal. For example, the PID signal that was transferred first and the PID signal that was transferred last
Even if the ID signal and the ID signal are of a type that should be turned ON at exactly the same time, a non-negligible time difference will occur when they are output from the simulation data update processing section 8. In other words, in the conventional device, due to the data transfer processing time from the simulation data temporary storage section to the simulation data update processing section 8, the timing between each PID cannot be defined, and each simulation signal can only be treated as an individual independent signal. These signals have no meaning, so testing of plant control equipment, etc. using these signals is also a test of individual PIs.
There is a problem in that only the D signal is tested, and the test for signals between PIDs must be performed by other means.

The present invention provides simulation data that enables tests of a wide variety of functions such as plant control devices that monitor and control according to changes in plant input, and tests of plant control conditions in the same way as tests using an actual plant. The purpose is to provide a generator.

[Configuration of the Invention (Means for Solving the Problems)] The present invention includes a simulation control data retrieval unit that sequentially retrieves and stores the control data for each plant input point from the simulation data temporary storage unit in a conventional device; a simulation state control section that controls the execution of arithmetic processing performed in the simulation data update processing section and stop maintenance based on a simulation state maintenance and start instruction command; and a plant input that is arithmetic processed by the simulation data update processing section. A timing adjustment section that defines the processing timing of control data for each point is added.

(Function) This makes it possible to start, delay, and suspend simulation based on the data that instructs to hold or start the simulation state and the timing time that can be set for each plant input point.

It becomes possible to perform detailed simulations and quickly perform batch simulation update processing for a large number of plant inputs.

(Embodiment) FIG. 1 is a block diagram of a simulation data generation device showing an embodiment of the present invention. In the figure, the same reference numerals as in FIG.
or a corresponding portion. The main difference in the structure of the diagram from that shown in FIG. The timing time 2c is set in the simulation data input processing section 2, the timing time 2c is set in the simulation data temporary storage section 12, and the instruction data 2d for instructing the simulation operation is set in the simulation operation instruction data section 13. This is because we have added a function to do this. Furthermore, the control data 3b set in the simulation data temporary storage section 3 is sequentially retrieved, and the simulation data control section 1
a simulation control data retrieval unit 11 to be registered in the internal storage buffer of 0; a simulation state control unit that determines the simulation state retention/disclosure instruction 4c and transmits state retention or retention release instruction data 12a to the simulation update processing unit 8; 12, the PID timing time is extracted from the control data lla extracted from the simulation control data extraction unit 11, and the simulation data is updated and adjusted.

Another point is that a timing time adjustment unit 13 is provided which transmits the simulation control data of the PID to the simulation update processing unit 8 after the timing time has elapsed.

With the above configuration, the simulation data information input from the input/output device 1 is transferred to the simulation data input processing section 2.
Then, the control data 2a, file number 2b, timing time 2c, and instruction data 2 shown in FIGS. 2 and 3 are
d. Control data 2a and timing time 2
c is set in the simulation data temporary storage section 3, and instruction data 2d and file number 2b are set in the simulation operation instruction data section 4. The file simulation data registration processing section 5 registers the control data 3a set in the simulation data temporary storage section 3 in the file of the file simulation data registration device 6 corresponding to the file number 4a set in the simulation operation instruction data section 4.

Next, when outputting a simulation signal, the control data 3a registered in the file simulation data registration device 6 is transferred to the file number 4b (a file indicating a specified range) set in the simulation operation instruction data section 4 by the file simulation execution processing section 7. The files corresponding to the file numbers a to file numbers (set under the condition that file number a≦file number s) are set in the simulation data temporary storage section 3.

The control data 3b set in the simulation data temporary storage section 3 is taken out to the simulation data control section 10 and subjected to simulation update processing.

The data used by the simulation data control unit 10 includes simulation control data 3b shown in FIG. 2 and simulation state retention/disclosure instruction data 4c that instructs whether to start updating the simulation or suspend the update.

The simulation data control unit 10 runs at a fixed cycle (within the monitoring scanning cycle determined for each input point, the shortest scanning cycle is defined as the fixed cycle time), and the simulation control data retrieval unit 11 sets the simulation data in the temporary storage unit 3. All of the simulation control data 3b are extracted and set in a storage buffer inside the simulation control data extraction unit 11.

Subsequently, the simulation state control unit 12 determines the simulation state hold/start instruction 4c, and transmits the simulation state hold instruction 12a to the simulation data update processing unit 8 when the state hold instruction is received. When a state start instruction is given, the timing time adjustment unit 13 takes out the simulation control data lla from the internal storage buffer, checks whether there is a timing time, and if there is, updates the timing time every running cycle of the simulation data control unit 10 ( For example, when the running cycle is 1 second and the timing time is 10 seconds, from this point on, the simulation control unit 10
The simulation update process is performed on the 11th run), and after the timing time has elapsed, no timing time is specified, and the simulation update process is set to be performed on the next run. If timing time is not specified, simulation control data excluding timing time
la is transferred to the simulation data update processing section 8.

The simulation data update processing unit 8 stores the simulation control data lla in an internal update table 8 shown in FIG.
a, and the above-mentioned simulation state retention instruction 4c.
It is determined whether or not the update process has occurred, and if the instruction is to maintain the state, the update process is not executed, and if the instruction is to start, the update process is executed in the internal update table 8a.
The simulation data control unit 10 processes all the simulation control data registered in the
Update processing is performed every running cycle.

Figure 5 shows a time chart of the movement when the simulation is started from the state holding state using input points A and B.A simulation start instruction is issued at time T, and input point A is moved quickly. The input point B starts the simulation after the timing time t has elapsed, and the state maintenance instruction is issued at time T2 until the simulation start instruction is issued at time T (tz:
Ta - Tz ), an example is shown in which the simulation update process is suspended and the update process is subsequently executed up to the end point.

By combining the data that instructs to hold or start the simulation state with the timing time that can be set for each plant input point, it is possible to start, delay, and suspend the simulation, and the timing between PIDs is correctly specified. Simulation signals that match the actual plant can be obtained, making it possible to perform tests on plant control devices, etc. correctly.

In the above embodiment, a simulation data generation device that combines a simulation data control unit processing method, timing time data input from the input/output device 1, simulation state holding/start instruction data, and a file simulation data registration device is described. However, it is not limited to controlling process inputs, but is also effective as a means of controlling various status flags with identification names or identification numbers and process outputs (analog quantities, digital quantities, contact outputs, etc.) It is clear that

[Effects of the Invention] As explained above, according to the present invention, by making full use of timing time data and simulation state holding/starting instruction data, several simulation patterns can be created for the plant input point to be simulated, for example, After the timing time has elapsed → update start, state retention → state retention cancelled,
→ Start update, hold state → Cancel state hold → After timing time → Start update, after timing time elapse → Start update →
By creating a change state similar to the actual plant connection state by creating state retention → state retention release → update start, etc., it is possible to repeatedly perform tests for each function and combinations of functions, etc. in the same state.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of a simulation data generation device showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of the configuration of simulation control data, FIG. 3 is an explanatory diagram of the configuration of scan instruction data, and FIG. 4 is a simulation diagram. FIG. 5 is a diagram showing the configuration of an internal update table of the update processing section, FIG. 5 is a simulation update processing time chart, and FIG. 6 is a diagram showing the configuration of a conventional device. DESCRIPTION OF SYMBOLS 1... Input/output device, 2... Simulation data input processing section, 3... Simulation data temporary storage section, 4... Simulation operation instruction data section, 5...
- File simulation data registration processing unit, 6 - File simulation data registration device, 7... File simulation execution processing unit, 8... Simulation data update processing unit, 9... Data pace, 10
...Simulation data control section, 11.. Simulation control data extraction section, 12.. Simulation state control section, 13.. Timing time adjustment section. (7317) Representative Patent Attorney Kensuke Aide (8869)
) Representative Patent Attorney Kenji Maru Figure Figure 4 Figure 4

Claims (1)

[Claims] A file simulation data registration device that converts and stores control data input for each plant input point necessary to generate simulation signals that simulate signals of each part of the plant as a file; A simulation data temporary storage unit that retrieves the data from a file simulation data registration device and temporarily stores it, and a simulation that outputs the simulation signal by sequentially retrieving the control data stored in the simulation data temporary storage unit for each plant input point and processing it. A simulation data generation device comprising: a simulation control data retrieval unit that sequentially retrieves and stores the control data from the simulation data temporary storage unit for each plant input point, and a simulation control data retrieval unit that sequentially retrieves and stores the control data from the simulation data temporary storage unit; a simulation state control unit that controls the execution and suspension of arithmetic processing performed by the simulation data update processing unit based on instructions; and processing of control data for each plant input point that is processed by the simulation data update processing unit A simulation data generation device comprising: a timing adjustment section that defines timing.