FunctionalityΒΆ
| Digital inputs | 8 (120 V AC / 230 V AC) | 
| Digital outputs | 4 relay outputs with one switch-over contact each | 
| LED displays | For signal statuses, errors and supply voltage | 
| Internal power supply | Through the expansion bus interface (I/O-Bus) | 
| External power supply | Via the terminals ZP and UP (process voltage 24 V DC) |