What is Modbus? Understanding It Clearly to Avoid Pitfalls Next Time
What is Modbus? Understanding It Clearly to Avoid Pitfalls Next Time Last night, a junior was debugging the RS-485 bus, and the slave device just wouldn’t respond. After capturing the data, I found: the CRC low byte was reversed! Not fully grasping the Modbus frame format meant that 1 byte error = total failure. Today, … Read more