ABB AC500 V3 Hardware Manual page 143

1 I/O bus
2 16 yellow LEDs to display the states of the inputs/outputs C0 to C15
3 Terminal number
4 Allocation of signal name
5 Interfast connector (20-pin)
6 2 holes for wall-mounting with screws
7 DIN rail
Intended purpose
The digital I/O module DC561 can be connected to the following devices via the I/O bus
connector:
● S500 communication interface modules (e. g. CI501-PNIO, CI541-DP, CI581-CN)
● AC500 CPUs
● other AC500 I/O modules
The module contains 16 digital channels in 1 group, each channel can be used as a digital 24 V
DC input or 24 V DC output.
2022/01/31
The I/O module must not be used as a decentralized I/O module with CI590-
CS31-HA communication interface modules.
3ADR010278, 3, en_US
Device specifications
I/O modules > Digital I/O modules
143