JPS5914779B2 - Simulate equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for simulating process input/output in, for example, a plurality of regionally separated computer systems connected by a transmission line.

A conventional device of this type is shown in FIG.

In Fig. 1, C1, C2, and C3 are computers connected by transmission line L, and T1, T2, and T3 are computers C1, C2, and C3.
3, the input/output terminal of the process connected to 51, 5
2 and 53 are simulation devices for each input/output terminal T1, T2, and T3, which use a graphic display device or the like. Next, the operation of the conventional device shown in FIG. 1 will be explained. The same process simulation method is used for each computer C1, C2, and C3. Each computer C1, C2, C3 where the entire process as a control system is decentralized
The process input/output of each is performed by a simulation device 51,
52 and 53. That is, an operation/test mode is provided for each process input and process output, and in the operation mode, the process input/output status is displayed on the simulation device and monitored for each computer. In addition, in test mode, input to the simulation device allows
It is possible to output a simulated person without inputting/outputting to the actual input/output terminals T1, T2, and T3. This conventional method requires a simulation device for each computer, and has the disadvantage that operators must perform operations for each computer distributed in various locations.

The present invention was made to eliminate these drawbacks, and provides a simulation device that allows a system controlled by a plurality of computer systems to be centrally managed by a simulator installed in any computer.

An embodiment of the invention shown in FIG. 2 will be described below.

In Fig. 2, C5, C6, and C7 are computers connected by transmission line L, and input/output terminals Tl, T2, and T3 of each process.
It controls the This SO is the input/output terminal Tl, T
2. As a simulation device for T3, a graphic display device or the like is used. Next, the operation of the device shown in FIG. 2 will be explained.

The memory of each computer C5, C6, C7 stores input/output images of input/output terminals Tl, T2, T3.
Simulation reach device S by operator's operation. From there, the input/output images in each computer C5, C6, and C7 are read or written. This allows the device S to simulate the state of the entire process as a control system. It is used to display on top of the screen or to output a simulated process.
FIG. 3 shows the internal structure of the embodiment shown in FIG. 2, and the details thereof will be explained below.

In Fig. 3, 1 is a process stain having display means.
2 is a process simulation program that performs input and output with the process simulation device 1, 8
4 is the operation/test mode determination logic that determines and selects the process normal operation state or simulated operation state, and 4 is the format referred to when displaying on the process simulation device 1, which includes various symbol patterns necessary for display. It has the following. Further, 5 is a memory that stores input/output images of processes, etc., 6 is a program that starts input/output devices and processes data, 7 and 8 are input devices and output devices, respectively, and 9 and 10 are input terminals and output devices. It is a terminal.
Simulator S here. consists of a simulation device 1, a simulation program 2, a mode determination logic 3, and a format 4, one for each computer C5, C6, C7, and a memory 5, a program 6, and input/output devices 7, 8. , the input/output terminals 9 and 10 are the computers C5, C6,
It is provided for each C7, and FIG. 3 shows one computer system. Next, the operation of the invention shown in FIG. 3 will be explained.

For process input, the input device 7 is activated only when the process input/output program 6 is in the operation mode by the operation/test mode determination logic 8, input operation is performed from the input terminal 9, and the process input image on the memory 5 is rewritten. In the test mode, no input operation is performed. Therefore memory 5
The input image above is unchanged. (However, the process output is changed by input from the simulation device 1, which will be described later.) The process output is outputted by starting the output device 8 only when the process input/output program 6 is in the operation mode in the operation/test mode determination logic 3. Output image to terminal 1
Performs output operation at 0. No output is performed when in test mode. The above is provided for each computer, and completely independently of this, the process simulation program 2 displays input/output images, etc. on the memory 5 on the process simulation device 1 with reference to a predetermined format 4. .

Furthermore, data can be input from the process simulation device 1, and when the operation/test mode determination program 8 is in the test mode, input/output images and data in the memory 5 can be rewritten. Format 4 allows the operator to register as many screens as necessary and can be changed as desired. It should be noted that the process simulation program 2 reads and rewrites the memory 5, and the operation/test mode determination program 8 transmits the mode to the process input/output program 6 through a transmission path to all computers. It is possible. As a result of this structure, the operation of multiple computer systems that are geographically separated can be monitored using a single simulation device, and it is also possible to simulate all computer systems at once or to monitor the operation of individual computer systems. Individual simulations can be selected arbitrarily, and in addition to operation monitoring using the operation mode and testing of each input and output using the test mode, the data required by the operator can be displayed on the simulation device.

Although the above has been explained in the case of process input/output, this invention is not limited to this, but can also be applied to data files in each computer,
It can be widely used for writing and reading data tables, starting and stopping programs, etc.

As described above, according to the present invention, it is possible to centrally monitor a control system connected to multiple distributed computers using a single simulator, so there are many advantages such as labor saving, cost reduction, and improved operation requirements. .

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a conventional device, FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is an internal configuration diagram corresponding to FIG. 2. In the figure, C5, C6, and C7 are computers connected by transmission path L, Tl, T2, and T3 are process input/output terminals connected to each computer, SO is a simulator, 1 is a process simulation device, and 2 is a Process simulation program, 3
is the operation/test mode judgment logic, 4 is the format,
5 is a memory, 6 is a process input/output program, 7 is an input device, 8 is an output device, 9 is an input terminal, and 10 is an output terminal.

Claims (1)

[Claims] 1. A plurality of computers having at least a memory, a predetermined program, and an input and output device, an input/output terminal having an input and output terminal connected to the input and output devices of each of these computers, and the plurality of computers mentioned above. A system comprising a transmission line connecting the above-mentioned computers and transmitting data, and performing at least predetermined control by the plurality of computers to which the input/output terminals are connected, and the transmission line, and the simulation program Accordingly, a simulator is provided in a predetermined computer of the plurality of computers, which gives a simulated signal to the memory provided in each of the plurality of computers, receives information from the memory, and displays information to be simulated, A simulation device characterized in that a system is simulated by the simulator provided in the predetermined computer.