The Siemens SM 1223 PLC digital expansion module is a 16 input and 16 relay output with a contact rating of 2A device. It is designed for use with S7-1200 series PLCs. The I/Os can be connected with both sink and source configurations. It has advanced features like alarms and diagnostics that make it an ideal choice for various applications.
SIMATIC S7-1200, Digital input/output SM 1223, 16 digital inputs 24 V DC, 16 digital outputs, Relay 2 A