The ABB 1SAP424200R0001 is the CI542-DP-XC remote I/O slice, a PROFIBUS slave that mounts in a modular distributed station. It carries 8 digital inputs (24 VDC, 5 mA each), 8 digital outputs (24 VDC, 0.5 A transistor), and 8 configurable channels that can be set as input or output, each also 24 VDC 0.5 A. The backplane supply is 20.4…28.8 V DC, so it operates on a standard 24 V control bus within tolerance.
Integration notes
The module is rated IP20, intended for a clean, dry enclosure. Ambient operating range is -30 to +70 °C, which covers most cabinet environments. The configurable channels default to input; the PROFIBUS address is set via DIP switches on the unit (not detailed in the basic spec, but consistent with the CI542 series). The output delay time τ is programmable from 0.1 to 32 ms, which can be used to debounce or sequence loads. Each output sinks 0.5 A maximum — total per module is the sum of active channels, limited by the backplane supply current. The digital inputs draw 5 mA each at 24 VDC, so a typical PLC source can drive eight inputs without issue.