View Full Version : Carel IR33 Modbus

22-07-2016, 05:05 PM
Hey guys,
I am not a refrigeration engineer. I am a software engineer. I have 2 Carel IR33's that I need to connect via modbus.

I can connect to this fine.

This device I am having trouble connecting to. I am using Ubuntu and a Python library to connect via USB to RS485 but I get no reply. I have tried using the Supernode as a gateway but I'm having trouble configuring that.

This is the Supernode I am using (http://www.carelparts.com/manuals/carel-supernode-aksnu-install-manual.pdf). Documentation isn't great and I'm not sure how to access the service menu in the supernode.

Any help would be greatly appreciated.