The Siemens SM 1223 PLC digital I/O expansion module is a 16 input and 16 relay output with a contact rating of 500mA device. It is designed to use with S7-1200 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, Transistor 0.5 A