Circuit diagrams

Interface boards SCI1 or SCI2 (Serial Communication Interface 1 or 2) and interface board SCB1 can be used to assemble a serial I/O system with a fiber-optic conductor that can expand the binary and analog inputs and outputs considerably. In addition, the fiber-optic conductor reliably decouples the devices according to

DIN VDE 0100 and DIN VDE 0160 (PELV function, e.g. for NAMUR).

The fiber-optic conductor of between 0.3 m and 10 m in length connects the modules in a ring. Both the SCI1 and the SCI2 require an external 24 V supply (1 A each).

All inputs and outputs of the interface boards can be parameterized.

Interface boards SCI1 and SCI2 can be snapped onto a mounting rail at a suitable location in the switchgear cabinet.