JP2000013937A - Control panel renewal method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method which realizes verification test, corresponding to the actual facilities and renews the facilities without reduction of the operating time of the facilities. SOLUTION: This renewal method changes an existing control panel 1 with a new control panel 2 by the procedures following it, by preferably changing the connection and switching procedures of a relaying panel 7 and a temporary terminal board 9. A temporary control panel 3 similar to the existing control panel 1 is installed to the area near the existing control panel 1, and the relaying panel 7 is provided between these panels. The temporary control panel 3 is operated. Here, the existing control panel 1 is removed, and a new control panel 2 having the temporary terminal board 9 is placed in the same area. The newly installed control panel 2 is operated via the relaying panel 7. The temporary control panel 3 is made to stop, and the temporary control panel 3 and relaying panel 7 are removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control panel updating method for updating a control panel to a new one in a hot-line state when a control device is controlled by the control panel.

[0002]

2. Description of the Related Art Many conventional control devices are controlled by a control panel via a number of wires such as power lines, signal lines, and communication lines. When such a system has been used for many years, a new control panel has been developed, and if it is superior in terms of operability, efficiency, function, etc., it can be replaced with a new control panel. I have. so,
When the control panel was replaced with a new one, it was generally updated in the following procedure. Step 1: Shut down the equipment. Step 2: Remove all wiring connecting the existing control panel and the control device. Step 3: The existing control panel is evacuated to the evacuation place. Step 4: Extend the wiring and connect to the existing control panel. Step 5: The existing control panel is temporarily operated to check the operation. Step 6: Install a new control panel at the place where the existing control panel was originally located. Step 7: Connect a simulation circuit to the newly installed control panel and temporarily operate it to perform an operation test. Step 8: If the operation is normal in step 7, the simulated circuit is removed and regular wiring is performed. Step 9: Activate the new control panel, confirm the operation, and complete the update.

[0003]

However, this conventional method has the following problems. (1) Since a simulation circuit is used, it takes a lot of time to perform a verification test based on actual equipment. (2) When switching, it takes a long time to stop the equipment,
Uptime has been reduced and costs have been substantially increased.

[0004]

Accordingly, a control panel updating method according to the present invention comprises an existing control panel, a control device controlled by the existing control panel, and a large number of wires connecting the existing control panel and the control device. In the operating system configured as above, the existing control panel is replaced with a new control panel by the following procedure. Step 1: Install the same temporary control panel as the existing control panel near the existing control panel, and place a relay panel with two contacts between them. Step 2: A relay cable is connected to one terminal of the open a-contact among the two contacts of the relay panel, and the other end of the relay cable is guided to the existing control panel. Another relay cable is connected to the other terminal of the a contact, and the other end of the relay cable is connected to the I / O of the temporary control panel. Step 3: While the existing control panel is in operation, the wiring between the existing control panel and the control device and the relay cable are connected directly to the sleeve, and the contact a of the relay panel is closed. Step 4: The temporary control panel is operated to disconnect between the straight sleeve connection portion and the I / O of the existing control panel. Step 5: The existing control panel is removed, and a new control panel having a temporary terminal block is installed there. Step 6: One terminal of the temporary terminal block is connected to the control device, and the other terminal is connected to the open contact b of the relay board with another relay cable. Step 7: Close the contact b of the relay board and input the signal of the control device to the new control board. Step 8: The connection of the temporary terminal block is switched, and the signal of the control device is input to the new control panel without passing through the relay panel. Step 9: removing the relay cable, the relay panel, and the existing control panel. By performing the above procedure, the downtime of the equipment and the work for renewal can be kept to a minimum, and a reliable test can be performed according to the actual equipment.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the progress of the update work of the control panel to which the method of the present invention is applied, together with the wiring status, and FIG. 2 is a flowchart showing the procedure. In the figure, 1 is an existing control panel to be replaced, 2 is a newly installed control panel, 3 is a temporary control panel used in the process of relocation, 4 is the I / O of the existing control panel 1, and 5 is a new control panel 2. I
I / O 6 is an I / O of the temporary control panel 3, 7 is a relay panel having two contacts, 8 is a straight sleeve connecting portion for connecting two wires, 9 is a temporary terminal block, 10 and 14 are wires, 11 is a relay cable, and 12 and 13 are transmission cables. In FIG. 1, all the lines including the wiring 10 are drawn by one line, but actually, many lines are used and bundled,
All the lines are treated in the same way as described below.

The existing control panel 1, the new control panel 2, and the temporary control panel 3 are connected to the outside via I / Os 4, 5, and 6 of input / output units, respectively, and control signals are transmitted via signal input / output units. Connected to the control device. In addition,
Handling of transmission cables between the transmission and the control unit also requires I / O
Since it is the same as the handling of wiring between 4, 5, 6 and the control device, the description is omitted below for simplification. A wiring 10 is connected to the existing existing control panel 1 via an I / O 4, and the other end of the wiring 10 is connected to a control device (not shown).
The existing control panel 1 controls the control device via the wiring 10 and the transmission cable 12. According to the method of the present invention, the update operation of the control panel in such a system is performed by the following procedure according to the flowchart of FIG. (Step 1: S1) First, the same temporary control panel 3 as the existing control panel 1 is installed near the existing control panel 1, and the relay panel 7 having two contacts is placed between them. (Step 2: S2) Of the two contacts of the relay panel 7, the relay cable 11 is connected to one of the open a contacts, and the other end of the relay cable 11 is guided to the existing control panel 1. And a
Another relay cable 11 is connected to the other terminal of the contact, and the other end of the relay cable 11 is connected to the I / O of the temporary control panel 3.
Connect to O6. (Step 3: S3) While the existing control panel 1 is in operation, the wiring 10 between the existing control panel 1 and the control device is directly connected to the sleeve, and the contact a of the relay panel 7 is closed. (Step 4: S4) The temporary control panel 3 is operated to cut off the connection between the straight sleeve connection portion 8 and the I / O 4 of the existing control panel 1. (Step 5: S5) The existing control panel 1 is removed, and the new control panel 2 provided with the temporary terminal block 9 is installed. (Step 6: S6) Of the terminals of the temporary terminal block 9 having three terminals, the center terminal is connected to the I / O 5 of the newly installed control panel 2. Then, one terminal excluding the central terminal of the temporary terminal block 9 is connected to the control device, and the other terminal connected to the central terminal is connected to one terminal of the open contact b of the relay panel 7 with the relay cable 14. Connecting. The other terminal of the contact b is connected to one terminal of the contact a and is connected to the control device. (Step 7: S7) The contact b of the relay panel 7 is closed, and a signal of the control device is input to the new control panel 2. Then, the operation of the new control panel 2 is checked while comparing with the operation of the temporary control panel 3, and adjustment work and the like are performed. (Step 8: S8) The connection of the temporary terminal block 9 is switched, and the signal of the control device is input to the new control panel 2 without passing through the relay panel 7. In this state, the final check of the operation of the new control panel 2 is performed.
If there is a problem, make a final adjustment. (Step 9: S9) The relay cable 11, the relay panel 7, and the existing control panel 1 are removed. Since the existing control panel 1 is replaced with the new control panel 2 by the above-described procedure, the replacement operation can be carried out with almost no stoppage of the operation of the equipment if the work is performed satisfactorily, and the operation stop time can be minimized. It is.

[0007]

As described above, according to the present invention, the downtime of equipment can be minimized as compared with the prior art.
Equipment replacement work can also be minimized. In addition, since the test is performed in accordance with the actual equipment, the test can be made reliable. Therefore, there is an effect that the cost for equipment renewal can be significantly reduced, and the practicability can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing the progress of wiring conditions of equipment to which the method of the present invention is applied.

FIG. 2 is a flowchart 1 showing the procedure of the method of the present invention.
Existing control panel 2 New control panel 3 Temporary control panel 4, 5, 6 I / O 7 Relay panel 8 Straight sleeve connection part 9 Temporary terminal block 10, 14 Wiring 11 Relay cable 12, 13 Transmission cable Reference number 12542

Claims (1)

[Claims] An operating system comprising an existing control panel, a control device controlled by the existing control panel, and a number of wires connecting the existing control panel and the control device, comprises the following steps: A control panel updating method, wherein the existing control panel is replaced with a new control panel. Step 1: Install the same temporary control panel as the existing control panel near the existing control panel, and place a relay panel with two contacts between them. Step 2: A relay cable is connected to one terminal of the open a-contact among the two contacts of the relay panel, and the other end of the relay cable is guided to the existing control panel. Another relay cable is connected to the other terminal of the a contact, and the other end of the relay cable is connected to the I / O of the temporary control panel. Step 3: While the existing control panel is in operation, the wiring between the existing control panel and the control device and the relay cable are directly sleeve-connected, and the contact a of the relay panel is closed. Step 4: The temporary control panel is operated to disconnect between the straight sleeve connection portion and the I / O of the existing control panel. Step 5: The existing control panel is removed, and a new control panel having a temporary terminal block is installed there. Step 6: One terminal of the temporary terminal block is connected to the control device, and the other terminal is connected to the open contact b of the relay board with another relay cable. Step 7: Close the contact b of the relay board and input the signal of the control device to the new control board. Step 8: The connection of the temporary terminal block is switched, and the signal of the control device is input to the new control panel without passing through the relay panel. Step 9: removing the relay cable, the relay panel, and the existing control panel.