What logs should I be looking at to troubleshoot Modbus RTU device connection issues?
I am running Ignition 8.0.5 on Ubuntu 18.04 and attempting to connect to a Modbus RTU device however connection status just flips between connecting and disconnected.
I have the Serial Support Gateway module installed and have created a device of type “Modbus RTU” (was surprised that there is no field to enter a Modbus address).
I looked at the wrapper.log file but there doesn’t appear to be any mention of the device name in question.
I have confirmed that the computer itself is able to reach the modbus RTU device (outside Ignition) using modpoll (a handy command line modbus scanner).