Siemens 6ES7223-1PL22-0XA0 Programmable Logic Controller Module

Siemens 6ES7223-1PL22-0XA0 is a SIMATIC S7-200 Digital I/O expansion module (EM 223) designed for S7-22X CPUs. It adds 16 digital inputs at 24 V DC and 16 relay outputs with 2 A per channel, enabling direct control of loads such as sensors, lights, and actuators in compact S7-200 projects. The 16 inputs support either sinking or sourcing wiring; the 16 relay outputs are isolated relay contacts rated 2 A per point for switching AC loads up to 230 V (range 24–230 V AC, up to 250 V). The module derives logic power from the backplane bus at 5 V DC (up to 150 mA) but can also accept an external sensor supply of 24 V DC (up to 72 mA). The DC load side (L+) is 24 V DC with a permissible range of 5–30 V, while the AC load side (L1) accepts 24–230 V AC. Typical power dissipation is 6 W, and the unit is intended solely for S7-200 installations where an EM223 extension is required to expand I/O capacity.