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Problem with Serial Communication

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My PLC is CJ2M-CPU12

And communication board is SCU41 v1.3

I connect to SCU41 Port1 - 2 wires at pin 6 and 8. From this is going to ADAM4520 Converter.

And then to my computer.

When i send command:


i have at response some additional responses like:

@00FA1543*\r and @00FA1442*\r

What is happend?

I cant find this error codes

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