Application:
Remote I/O modules are used in distributed control system for supervising control modules, such as process valves, pumps and instrumentation. Principally, five types of I/O-modules are used:
Digital input modules read on/off status from switches.
Digital output modules actuate control modules on/off.
Analogue input modules read continues values from transmitters.
Analogue output modules actuate continous control modules.
Combination modules of above, combo m.