I’m using the CompactCom M40 Modbus/TCP module. Let’s take speed_example.c. It defined two variables/registers/parameterer: SPEED and REF_SPEED
These 2 parameters can also be seen in the M40’s webinterface. That’s great. But is there any way to receive the names via Modbus/TCP? Or do I have to use SNMP for this?
I guess, that if there a way to get that data via Modbus/TCP, then there would have to be some set of registers reserved for this. Where would I find the protocol for that?
Update: meanwhile, I have found the “Network Guide - Modbus-TCP” which explains that the Modbus modules doesn’t allow reading the metadata.