Terminals 1.8 to 4.8: process voltage UP = +24 VDC
Terminals 1.9 to 4.9: process voltage ZP = 0 VDC
1 I/O bus
2 4.0 - 4.7: Connected with UP (switch) -> Input;
Connected with ZP (load) -> Output
3 Switch-gear cabinet earth
The assignment of the other terminals:
Terminals Signal Description
1.0 to 1.3 +24 V 4 x sensor power supply sources (loadable
with 0.5 A in total)
1.4 to 1.7 0 V 0 V (reference potential)
2.0 to 2.7 C0 to C7 8 digital inputs/outputs
 
I/O Modules > Digital I/O Modules
2019/04/173ADR010121, 13, en_US312