The MODULbus interface is the playground to adapt the SCS and SCS 3 base units to the
numerous electrical devices in the automation world. Whether a special
counter is needed or a serial interface, a high resolution analogue
input or a PT100 interface, a MODULbus module does all the interfacing
not built already in the base unit.
IO modules can be plugged in SCS or SCS 3 base units or MODULbus extension units. You can find more details here.
