label:question Wrong 485 CRC

Open SY6502 opened this issue 7 months ago • 1 comments

What is the behavior of mbusd server when RS485 response is with wrong CRC? Is it timeout (no reply) or returns some 0x80 + command error code?

May 28 '25 09:05 SY6502

It will return Modbus exception with code 04 (Slave Device Failure).

Oct 24 '25 10:10 3cky