Ok - noddy question coming up.
I would like to communicate with a Eurotherm DCS via ethernet modbus which I've never worked with before. I've set up my program as a slave according to the ni ethernet modbus example. Do I need to input the IP address of the master or any other information to facilitate communication with the master or does the slave demon take care of all that? However, presumably I need to go into the DCS and tell it how to find the slave and which registers to look for?
A colleague of mine, who is familiar with communicating with a DCS with an inspection program called sherlock, says he would expect me to have to provide information such as master IP address, slave ID number plus register address. There seems no way of adding this information in the slave example (except for the register address). My initial thought is that the slave just needs to write to its own register and not concern itself with the master. Have I got the wrong end of the stick here?
LightWorker