Read data from MOXA NPort(5110, 5250A, 5150A) over Modbus TCP from Atlas Copco Mk5 gateway

Hello everyone, I'm new to the world of industrial communications, and I'm hoping someone can help me out. I want to create a dashboard to display on a screen so that my mechanics can see the status of the three or four installations (whether they are running or stopped, any temperature or pressure alarms, etc.) we have for air conditioning, vacuum groups, etc. My idea is to do this using Node-RED and Home Assistant. I don't need a complicated SCADA system, but it should be accessible via the web.

The first issue I'm facing is with an Atlas Copco vacuum group, which has 4 compressors connected via CAN bus. They connect to a Mk5 gateway that, according to the installer, has been configured with a Modbus 485 output, and they've provided me with a register map. I have a Moxa NPort 5150 that converts 485 to TCP. However, I have no idea if connecting the input of the Moxa to the output of the Mk5 will yield any results, and if it does, what program I need to use to handle this data.

Thank you very much for reading through this lengthy explanation!

You need to use "Modbus RTU over TCP", not "Modbus TCP" for such a connection. The user manual for my advanced modbus module has Moxa configuration notes you will wish to follow, but those happen to apply to IA's native Modbus driver, too.