The reason why the computer programming software and the Mitsubishi PLC cannot communicate

Create Date: 2024-8-30 12:03:23|Source: Mitsubishi Electric/Mitsubishi Electric

What is the reason why the programming software on the computer and the Mitsubishi PLC cannot communicate? How do I set the port of the communication line?

                               The reason why the computer programming software and the Mitsubishi PLC cannot communicate

There are several reasons why communication may not be available:

1. It may be that the PLC is not energized;

2. The type of project created by the programming software is different from the actual PLC type;

3. It may be a problem with the communication port setting;

4. I used USB to 232 cable, but there was no device to drive or the drive was not as good as the device.

There may be many reasons, and you need to investigate them one by one. There are two main kinds of programming cables: SC-09, USB-SC-09, when using SC-09, if the computer does not have RS232 interface, you need to configure USB/RS232 converter, when purchasing the converter, you need to drive the device at the same time, after the device drive, there will be a virtual RS232 port number of the converter in the device manager of the computer, such as COM4, and this port number should be selected when downloading and uploading when programming.

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