JPS58219613A - Testing device of plant simulator - Google Patents

Abstract

PURPOSE:To confirm the transmission and reception of a desired signal speedily by connecting a simulator-side cable to a testing computer through an interface board, inputting and outputting the desired signal to and from a CRT display with a keyboard, and testing the soundness of operation. CONSTITUTION:The CRT display 16 provided with keyboard is used to select a connector number and a pin number. Consequently, the testing computer 22 and interface board 21 operates to select the specified connector and connector pin. Then, the keyboard is used for transmission-ON operation. Consequently, the computer 22 generates a contact-closing signal. This signal is stored in the storage part in a plant simulator 11 through the interface board 21, the specified connector pin of the connector 14, a specific core of the cable, and the specified connector pin of the connector 12. The storage result is transmitted from the simulator 11 to the computer 22, and consequently the display 16 displays a PID number and a received signal ON state.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is a method for verifying the operational soundness of a plant simulator (computer built-in) when conducting simulation tests of control and instrumentation systems of power plants and chemical plants. Regarding test equipment.

[Technical background of the invention]

A simulation test of a control/instrumentation system in a power generation plant will be explained with reference to FIG. In Figure 1,
11 is a plant simulator, 12 is a connector, 13 is a cable, 14 is a connector, 15 is a control panel, and 16 is a CRT display device with a keyboard. There may be one control panel 15, but usually a control/instrumentation system is composed of multiple units with different roles, and in order to comprehensively test this system, a plant simulator 11 simulating a power generation ground is installed. A multi-core flexible hub cable 13 for actual equipment with connectors on both ends is used to connect to the cable. Plant simulator 1
A large number of control signals and measurement signals emitted from the control panel 1 are transmitted to a control panel 15 via a large number of connectors 12, cables 13, and connectors 14. On the other hand, a large number of control signals emitted from the control panel 15 are transmitted to a large number of connectors 14, cables 13,
It is transmitted to the plant simulator 11 via the connector 12. At the same time, the signal exchange at this time is C with key date.
It is displayed on the RT display device 16 and also printed out as a hard copy. Therefore, the operator must operate and monitor the control panel 15, or use a CRT with a keyboard.
By referring to the display ratio and force of the display device 16, the control panel 15 can be comprehensively tested in a systematic manner.

[Problems with background technology]

However, when conducting the above simulation test, if cable 13, connector 12.14
If there is a malfunction on the plant simulator side including the control panel 15 and the plant simulator 11, there is a problem of wasting time and effort in connecting the control panel 15 and the plant simulator 11, testing the control panel 15, and investigating the cause. be. In this case, there is no problem because the individual parts used for the ground simulator 11, cable 13, control panel 15, etc. are thoroughly tested at the manufacturing stage.
Plant simulator 1 for simulation testing
1 and the control panel 15 using the cable 13, there is a possibility that predetermined signals may not be exchanged between the connector section of the control panel 15 and the plant simulator 11 due to problems such as incorrect connection.

[Purpose of the invention]

In view of the above points, the present invention accurately and quickly confirms in advance that predetermined signals are exchanged with a plant simulator when conducting a simulation test of a control/instrumentation system of a power generation plant or a chemical plant. The purpose is to provide a device for

[Summary of the invention]

When conducting a simulation test of a control/instrumentation system, connect the plant simulator side cable that connects to the equipment under test to the test computer via the interface board, and input/output specified signals from the CRT display device with keyboard. Another feature of this system is that it verifies the soundness of the operation of the plant simulator.

[Embodiments of the invention]

FIG. 2 shows an embodiment of the present invention, in which the plant simulator test device of this embodiment transmits signals between the cable 130 and the plant simulator 11 at the connector 1°4 on the control panel side. A digital or analog signal is sent to the interface board 21 for sending and receiving, and the plant simulator 11 or the interface board 21, and at the same time, the interface board 21 or the plant simulator 11 also receives a response signal to the transmitted signal. The test computer 22 includes a test computer 22, and a CRT display device 16 with a key gate, which instructs the test computer 22 to send and receive digital or analog signals and displays the results. Here, the signals passing through the connector 140 are broadly classified into digital signals and analog signals, and these signals are further divided into input signals to the ground simulator 11 and output signals from the ground simulator 11. The digital input signal to the plant simulator 11 is, for example, a contact signal (signal) issued to the plant simulator 11 from the control switch of the control panel 15 in FIG.
/ start signal, etc.).

The analog input signal to the plant simulator 11 is
For example, it is a voltage signal (flow rate control signal, etc.) issued from the controller of the control panel 15 in FIG. 1 to the plant simulator 11. The digital output signal from the ground simulator 11 is, for example, a contact signal that is discontinued from the ground simulator 11 in FIG. thing). The analog output signal from the plant simulator 11 is, for example, a voltage signal (simulating a process quantity such as a flow rate or an electrical quantity such as a generator output) issued from the ground simulator 11 in FIG. ).

FIG. 3 is a diagram showing the procedure for verifying the operational soundness of the plant simulator and the functions of related equipment, and FIG. 4 is a diagram showing an example of the connector number and pin number selection circuit in the interface board 21. It is. However, the fourth
In the figure, excitation coils of auxiliary relays X1 to Xn and Y1 to Yn are omitted. In FIG. 3, Route DI indicates the procedure for confirming the soundness of the digital input signal to the plant simulator 11, and Route AI indicates the procedure for confirming the integrity of the analog input signal to the plant simulator 11. Root DO is Plant Simulator 1
The route AO shows the procedure for checking the soundness of the digital output signal from the ground simulator 11, and the route AO shows the procedure for checking the soundness of the analog output signal from the ground simulator 11. In FIG. 4, X1 to Xn indicate connector number selection auxiliary relays, and Y1 to Yn indicate pin number selection auxiliary relays. The auxiliary relays X1 to Xn are controlled by the control signals from the test computer 22 as a result of the connector number selection operation on the CRT display device 16 with a keepad; As a result of number selection operation, test calculator 2
It is controlled by a control signal from 2.

A method for verifying the soundness of the ground simulator 11, connector 12, cable 13, and connector 14 will be described below.

Table 1 below shows an example of a screen displayed on the CRT display device 16 with a single key when confirming the soundness of the digital input signal to the plant simulator 11.

@i table Now, using the key date of the CRT display device 16 with key date shown in FIG.
etc.) and the pin number (for example, -2°, 3-4, etc.). By this operation, υ, test calculator 2
2 and the interface board 21 operate, and a predetermined connector and connector pin are selected. Next, use the keyboard to turn on the transmission signal. This operation causes the test computer 22 to issue a contact closing signal (simulating a pump start signal or the like from a control switch). This signal is transmitted to the interface board 21 and the connector 14.
of connector pins (for example, connector J-1
pins 1-2, etc.), a predetermined core wire of the cable 13,
A predetermined storage section (for example, PID
number DI-1, DI-2, etc.). The stored results are transmitted from the plant simulator 11 to the test computer 22, and as a result, the CRT display device with keyboard 1
6, the PID number (DI-1, DI-2, etc.) and the reception signal ON are displayed. That is, No. 1 in Table 1 indicates that when the key of the CRT display device 16 with a - key is operated, a contact closing signal is issued from the test computer 22, and this signal is sent to the control panel. Received by a predetermined storage unit DI-1 in the ground simulator 11 via pins 1-2 of the side connector J-1, the core wire of the cable 13 connected to this pin, and a predetermined pin of the plant simulator side connector. It shows. From this, it can be seen that with respect to the digital inputs No. and 1 to the plant simulator 11, there is no erroneous connection of the cable 13, poor contact of the connector 12 or 14, or abnormality of the plant simulator 11.

Table 2 below shows how to use C with a keyboard when ensuring the integrity of analog input signals to the plant simulator 11.
An example of a screen displayed on the RT display device 16 is shown.

Table 2 The procedure for confirming the soundness of analog input signals to the plant simulator 11 is to use the digital input signals described above, except for using an analog signal (a voltage signal simulating a flow rate control signal, etc. from a controller) as a transmission signal. The procedure is similar to the procedure for verifying the soundness of .

Table 3 below is an example of a screen displayed on the keyed CRT display device 16 when confirming the soundness of the digital output signal from the plant simulator 11.

Table 3 Now, use the keyboard of the CRT display device 16 with key date in FIG.
2 etc.). This operation allows you to use the test calculator 2.
2 is activated, and a predetermined storage section (for example, PID numbers Do-1, DO-2, etc.) in the plant simulator 11 is selected. Next, use the key date to turn on the outgoing signal.
Perform the following operations. As a result of this operation, the plant simulator 11 issues a contact closing signal (simulating the closing of a limit switch contact when the valve is fully open). This signal is transmitted through a predetermined connector pin of the connector 12, a predetermined core wire of the cable 13, and a predetermined connector pin of the connector 14 (for example, pin 1 of the connector J-5).
-2, etc.). This signal is further transmitted to the test computer 22 via the interface board 21, and as a result, the connector numbers (J-5, J-6, etc.) and pin numbers (1-2) are displayed on the CRT display with keyboard [16]. ,3-4
etc.) and reception signal ON are displayed. That is, N in Table 3
o and l, when the key of the CRT display device with key date 16 is operated in - mode, a contact closing signal from a predetermined PID number DO-1 in the ground simulator 11 is issued, and this signal is sent to the connector on the plant simulator side. This shows that the signal has reached pin 1-2 of the control panel side connector J-5 via a predetermined pin of the cable 13 and the core wire of the cable 13 connected to this pin. - From this, regarding the digital output No. and l from the plant simulator 11, incorrect connection of cable 13, poor connection of connector 12 or 14,
It can be seen that there is no abnormality in the plant simulator 11.

Table 4 below shows the image displayed on the keyed CRT display device 16 when checking the integrity of the analog output signal from the plant simulator 11. The confirmation procedure is to use an analog signal (
The procedure for confirming the soundness of the digital output signal is the same as described above, except that a voltage signal simulating a process quantity such as a flow rate or an electrical quantity such as a generator output is used. Thus, the interface board 21, the test calculator 22 and the key? - with C
By using the RT display device 16, the operational soundness of the ground simulator, including the cables and connectors, can be verified.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to verify the operational soundness of the plant simulator, including cables and connectors, before conducting a simulation test. Simulation tests are not interrupted due to defects or malfunctions in the plant simulator, and simulation tests can be carried out efficiently.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a simulation test in a power generation plant, Fig. 2 is a configuration diagram of a plant simulator test device according to the present invention, and Fig. 3 is a test procedure using a plant simulator test device according to the present invention and functions of related equipment. 4 is an explanatory diagram showing an embodiment of the connector number and pin number selection circuit in the interface board according to the present invention. 11...Plant simulator, 12.14...Connector, 13. ... Cable, 15 ... Control panel, 16
. . . CRT display device with keyboard, 21 . . Interface board, 22 . . . Test calculator. (7317) Agent: Patent Attorney Noriyuki Chika (
1 other person)

Claims (1)

[Claims] In a device for verifying the operational soundness of a plant simulator when conducting simulation tests of control and instrumentation systems of power plants and chemical plants, an interface board for connecting cables from the plant simulator and a test computer; a test computer for transmitting a digital or analog signal to the plant simulator or interface panel and at the same time receiving a response signal to the transmitted signal from the interface panel or plant simulator; a display device with a keyboard for instructing the sending and receiving of digital or analog signals and displaying the results; A ground simulator testing device characterized by confirming that the output from the ground simulator is output to a predetermined cable end and verifying the operational soundness of the plant simulator.