ABB AC500 PLC - Intended Purpose

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 input/output module DC561 can be connected to the following devices via the I/O
bus connector:
● S500 bus modules (e. g. CI501-PNIO, CI541-DP, CI581-CN)
● AC500 CPUs (PM5xx)
● other AC500 I/O modules
The I/O module must not be used as a decentralized I/O module with CI590-
CS31-HA bus modules.
The module contains 16 digital channels in 1 group, each channel can be used as a digital 24
VDC input or 24 VDC output.
Device Specifications
I/O Modules > Digital I/O Modules
2019/04/173ADR010121, 13, en_US172