Distributed I/O modules?

Is it possible to address an I/O module via mod/bus? If so do you have a short example?



I believe the Modbus in the RMC controllers only acts as a server or slave. So, it will react to requests from a master or (client) but will not initiate it’s own commands.

If you look on page 415 of this manual you will find a description of the Ethernet interfaces on the RMC and it even describes that if both devices are slave devices then there is nothing to initiate messages on the network. In almost all cases, an I/O module will be a slave and so it the RMC so in general, it will not work.