Siemens 6ES7223-1QH32-0XB0 Digital Input Module

Siemens 6ES7223-1QH32-0XB0 is an 8-input, 8-output digital I/O extension module (SM 1223) for SIMATIC S7-1200 controllers, enabling you to add eight AC digital inputs and eight relay outputs to a single CPU without replacing base hardware. The eight inputs are designed for 120/230 V AC signals, while the eight relay outputs provide contacts rated at 2 A for switching external devices. This module plugs into the S7-1200 expansion bus, integrating with the existing CPU and I/O topology to expand digital control capability. Typical applications include wiring AC-powered sensors or switches and using the relay outputs to drive actuators such as pumps, lights, or signaling devices in compact automation schemes. The part number is 6ES7223-1QH32-0XB0, and the module is commonly listed as part of Siemens’ SM 1223 digital I/O family for S7-1200 systems.