1 I/O bus
2 Allocation between terminal number and signal name
3 8 yellow LEDs to display the signal states at the digital inputs (I0 - I7)
4 8 yellow LEDs to display the signal states at the digital relay outputs (R0 - R7)
5 1 green LED to display the state of the process supply voltage UP
6 2 red LEDs to display errors
7 Label
8 Terminal unit
9 DIN rail
Sign for XC version
Intended purpose
The device can be used as a decentralized I/O extension module for S500 communication
iInterface modules (e. g. CI592-CS31, CI501-PNIO, CI541-DP, CI581-CN) or as a centralized
extension module for AC500 CPUs.
Digital configurable input/output unit.
● 8 digital inputs 24 V DC in 1 group (1.0...1.7)
● 8 digital relay outputs with one change-over contact each (R0...R7). All output channels are
galvanically isolated from each other.
● Fast counter
I/O modules > Digital I/O modules
2022/01/313ADR010278, 3, en_US328
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