Modbus RTU Exception Code -203

[Beno]

Error code decoder

EDIT. Aug 2020 Massive update to the list. (See below for the PID loop errors). I’m guessing many of you have used the handy feature in PAC Control under Help > Error Lookup which takes an error code, say: -9 and converts it into more human understandable text, like: “Timeout. No response from device. Check hardware connection, address, power, and jumpers.” You’ll see these same error descriptions when inspecting the message queue. But have you ever wanted to have this information availabl…

Its in the list: Driver could not be found or loaded.