2020-08-21 4:18 AM
Hello Experts
Need some help with serial port
I have been trying to communicate on serial 6 with MAX485 on Siemens V20 VFD drive.
When I send command on Modbus it is received by the slave and slave responses properly as seen in my logic analyser.
But when I read, the first byte read is always 0x00 and the second byte is the actual first byte.
Has anyone faced this issue. Could anyone help please.
Thanks
Murali
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