The problem often encountered in the use of Weiluntong touch screen - communication problems

Create Date: 2024-8-30 12:03:23|Source: Weinview

1. Communication with PLC

1.1 What to do when the communication between the PLC and the touch screen is not available

The most common problem that customers encounter when using the touch screen is the communication problem between the screen and the PLC. If communication fails, use the following steps:

A "Direct Online Simulation" (see Section 2.2 of this section for the "Direct Online Simulation" method) If the Direct Online Simulation fails, it indicates that the customer's settings are incorrect. It is recommended that he use the settings in the manual, and the parameters in the PLC should be consistent with the setting parameters of the screen.

b. If a direct "online simulation" is connected, ask him to check whether the communication line is correct (if the wire is made by the user, please check whether the pins of the male and female are arranged incorrectly, whether there are soldering errors, etc.)

C. If you have checked the wires and there is no problem with the wiring (the wiring must be judged according to the line serial number in the manual), then you can download the program and communicate normally.

d。 If all of the above is normal, but you still can't communicate, you need the customer to send the screen back to the company for testing.

1.2 Can one touch screen communicate with two Mitsubishi FX PLCs?

Never mind. You need the Mitsubishi 485BD module and the computer link protocol for line communication, the specific method is referred to the chapter of one machine and multiple screens in this manual

1.3 How to determine the station number when Delta communicates with the touch screen

Please determine according to the station number of delta PLC, because there are two cases of station number of delta PLC: one can only take 0 as the station number, and the other can only take 1 as the station number.
The problem often encountered in the use of Weiluntong touch screen - communication problems


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