JPH05224583A - Plant simulation device - Google Patents

Abstract

PURPOSE:To perform a plant simulation without changing the SAW or a process controller(PIO) nor changing the data storage address of a data transmitter(STN). CONSTITUTION:Data obtained from the (PIO) 7 are sent to respective (STN)s 1-4 connected to a data way 10 through a data output setting device 11 and read normally by a PC6. In simulation, the PIO7 and a plant simulator 8 output only data required for the simulation through the data output setting device. The data from the PIO7 and the data from the simulator 8 are put together into dummy data for simulation, which is read by the PC6 through the STN2 to perform specific operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant simulator device used for adjusting and maintaining a plant control system using a data transmission device.

[0002]

2. Description of the Related Art FIG. 4 shows, for example, Mitsubishi Electric Technical Report (July 1982).
It is a conventional plant simulation device as described in (issued on 25th). In this figure, reference numerals 1, 2, 3 and 4 are data transmission devices (hereinafter referred to as STN), and STN1 is a control computer (hereinafter referred to as CPU).
5, STN2 is a plant controller (hereinafter referred to as PC) 6, STN3 is a process input / output device (hereinafter referred to as P)
An IO 7 is connected to the STN 4, and a plant simulator (hereinafter referred to as a simulator) 8 is connected to the STN 4, and the STNs 1 to 4 are connected in a ring shape by a data way 10. A process state detector and a driving device 9 are connected to the PIO 7, and the information is fetched from the process state detector 9 and transmitted to each STN from the STN 3, and conversely, the processed control data from the CPU 5 and the PC 6 is output and controlled. The target drive device 9 is driven.

Next, the operation will be described. When normal control is performed by the conventional device, the process control data input from the process state detector 9 to the PIO 7 is S
The data is stored at the address A of the common memory of the TN3 and further stored at the address A of the common memory of the other STNs 1, 2 and 4 via the data way 10. The CPU 5 and the PC 6 fetch data from the common memory of the STN 2 and perform a predetermined operation.

Further, when the simulation is performed by the conventional device, the process control data input to the PIO 7 is stored in the address A of the common memory of the STN 3,
The data is stored in the address A of the common memory of the STN 4 via the data way 10. The simulator 8 takes in the data from this address, converts it into simulated data, and writes it in the address B of the common memory of the STN 4. This data is stored in the address B of the common memory of the STN 2 via the data way 10, and the PC 6 converts the address and fetches this data to perform a predetermined operation.

[0005]

In the conventional simulation apparatus, when the simulation is performed, the data storage address when performing normal control is different from the data storage address when performing simulation, and the address is read on the PC side. Therefore, there has been a problem that a lot of labor is required as the program is changed. Further, since the storage address is switched and the data is transmitted and received, data unnecessary for the simulation is input and output, and there is a problem that the area of the common memory of the STN becomes insufficient.

The present invention has been made to solve the above problems, eliminates unnecessary data transmission, effectively uses the area of the STN common memory, and changes programs such as a PC. The purpose is to perform simulation without doing.

[0007]

A plant simulation apparatus according to the present invention is provided with a data output controller for controlling the output of each data between PIO and STN and between the plant simulator and STN, and means for outputting or not. And a means for user-defining whether or not to perform is provided.

[0008]

In the plant simulation apparatus according to the present invention, the data output setting apparatus controls the data output from the PIO and the data output from the simulator so that they are opposite to each other during the simulation. In, the data storage address does not change, and the STN common memory can be effectively used.

[0009]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. In FIG. 1, STNs 1 to 4 are data ways 10
Connected in a ring shape by CPU5, PC6, PIO
7 and simulator 8 are connected to their respective STNs, and PIO 7 is a process state detector and driver 9
It is connected to the. Also, STN3 and PIO7, and
A data output setting device 11 is provided between the STN 4 and the simulator 8 to control data output during simulation.

Next, the operation will be described. FIG. 2 shows the flow of data transmission in this embodiment. During normal control, the data obtained from the PIO 7 is stored in the memory of the STN 3 via the data output setting device 11. This data is stored in the memory of the STN 2 via the data way 10, and the PC 6 takes out the data of the memory of the STN 2 and performs a predetermined operation. Further, at the time of simulation, the user sets the output setting of the data output setting device 11 as H / W only for the information necessary for the simulation and, for example, by setting the switch, data that does not need to be simulated is PIO.
Output from 7 is ON, output from simulator is OFF
The output from PIO is OF
F, the output from the simulator 8 is turned on. PIO7
And the data obtained from the simulator 8 is stored in the STN memory at the same address as in the normal control of the memory via the data output setting device 11 as simulation data.
Stored in the memory of STN2 via data way 10,
The PC 6 takes in this data and performs a predetermined operation.

Embodiment 2. In the first embodiment, the data output of the data output setting device 11 is defined by the user as H / W. However, as shown in FIG. Even if the output setting is performed under the condition, the same result can be obtained.

[0012]

As described above, according to the present invention, the CPU
The S / W of process control devices such as PCs and PCs is not changed, and the data from PIO is saved as before.
This is not due to TN address allocation,
Since the data output setting device controls the output of data, the STN can be configured to transmit only necessary information.
The memory capacity of can be used effectively.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a data output device according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a data output device according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram showing a conventional simulation apparatus.

[Explanation of symbols]

 1 data transmission device (STN) 2 data transmission device (STN) 3 data transmission device (STN) 4 data transmission device (STN) 5 control computer (CPU) 6 plant controller (PC) 7 process input / output device (PIO) 8 Plant simulator 9 Process state detector and drive 10 Data way 11 Data output setting device

Claims (1)

[Claims] 1. A data transmission device having a common memory for storing mutually exchanged data, which is connected via a data way and can exchange data with each other, and at least one of a plurality of data transmission devices. Process input / output device that supplies control data to the process while capturing data from the connected process and captures data from the process that is connected to another one of the multiple data transmission devices and transmitted via the data way In a plant simulation device including a plant simulator that sends pseudo data and a plant controller that controls a plant, a process input / output device, and means for outputting data from the plant simulator, and whether or not to output the data. Provided with a data output setting device having means for user definition And a plant simulation device.