Hello guys,

A little help please.

Is that mean that we must use MB_MASTER FB for not more than 10 instances?

I have the same problem but I only have 3 Modbus slaves, however I used more than 20 MB_MASTER in my FC.

In my first MB_MASTER I already get error status 8070.

Please refer to the photo I attached.

Thanks.

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Split from program to communicate with a Modbus Slave, only with one Comm_Load and Master block the comunication works.

Closed because the question is posted twice.

The second thread with the subject I have 3 Modbus slaves, however I used more than 20 MB_MASTER in my FC. In my first MB_MASTER I already get error status 8070. is published within the conference Communication / Networks

Best regards
The Helping Hand