Siemens 6ES7 223-1BH22-0XA0 EM223 is a SIMATIC S7-200 digital input/output expansion module that adds eight 24 V DC digital inputs and eight 24 V DC digital outputs to an S7-22X CPU, expanding the controller’s I/O capacity with a total of 16 programmable points. Each output channel can source or sink up to 0.75 A, enabling direct drive of common 24 V loads, while the inputs read standard 24 V DC signals. The unit fits typical S7-200 expansion configurations, with a compact footprint of about 90 × 80 × 62 mm, and is explicitly designed for use with S7-22X CPUs (not compatible with non-22X variants).
