I have seen this problem many times throughout the forum but none of the solutions have helped. I am using raspberry PI CM4 with debian buster as the OS. I am to trying to connect to separate IO modules through RS485 communication. I have attached a screenshot below, everything has been working in the past, but is not working the moment so I am curious to what might have changed.
The modules are being called correctly through modbus and then set in the config file as
Linux.DeviceFile.2=/dev/ttyAMA3, which is the correct RS485 port that is from the industrial raspberry pi model that I have.
Hi,
I have seen this problem many times throughout the forum but none of the solutions have helped. I am using raspberry PI CM4 with debian buster as the OS. I am to trying to connect to separate IO modules through RS485 communication. I have attached a screenshot below, everything has been working in the past, but is not working the moment so I am curious to what might have changed.
The modules are being called correctly through modbus and then set in the config file as
Linux.DeviceFile.2=/dev/ttyAMA3, which is the correct RS485 port that is from the industrial raspberry pi model that I have.
Thank you