ABB S500-S I/O modules

S500-S I/O modules

ABB’s S500-S safety I/O modules seamlessly integrate into the AC500-S safety PLC platform and support centralized or distributed configurations. The three modules cover digital and analog safety signals and, together with their terminal units, form a robust solution for safety automation across a wide range of machine and process safety applications, in both standard and harsh industrial environments.

Safety signal handling

ABB’s S500-S safety I/O modules combine high channel density with a compact footprint, enabling efficient safety integration into both centralized and distributed architectures via PROFINET/PROFIsafe — even with third-party systems. The I/O channels on each module can be used individually or