6ES7223-1HF22-0XA8 SIMATIC S7-200

The Siemens 6ES7223-1HF22-0XA8 is a 4-point digital input / 4-point relay output expansion module from the SIMATIC S7-200 CN product line. It is designed exclusively for use with S7-22X CPUs and provides compact digital I/O expansion with relay outputs for flexible AC/DC load switching. This module is not compatible with S7-200 SMART controllers.