Connecting Automation Direct to Numatics Modbus


Thread Starter

a agnone

The more I read about Modbus, the more confusing it is getting making a Automation Direct PLC talk to a Numatic valve bank using Modbus TCP/IP. Unfortunately Numatics' documentation is very poor and so is there support. I am trying to get a PLC to communicate with Numatics valve bank. Has anyone done this? The PLC wants to know the node, but I do not know the node number. Is the node the last number of the IP address? The address is
Then I have to write to the coils. Using a WX commant with GY0. Not sure anyone knows what I am talking about but if someone does, please help.