EM 223 expansion module for S7-200
The Siemens 6ES7223-1BH21-0XA0 is an SIMATIC S7-200 EM 223 expansion module providing 8 digital inputs at 24 VDC (sink/source) and 8 digital outputs at 24 VDC source type rated 0.75 A per point. Designed exclusively for the S7-22X CPU series; mounts on the expansion bus and draws power from the backplane.
Sourcing
This module is a specified component for S7-200 systems.