Spare-part status and what it means for the BOM
The 6ES7223-1BF22-0XA8 is labeled a spare part — a SIMATIC S7-200 CN EM 223 digital I/O module intended only for the S7-22X CPU series. This is not a current-production catalog item for new designs; it supports existing S7-200 CN installations that need a drop-in replacement. With 4 digital inputs and 4 digital outputs, it matches the standard EM 223 form factor for that platform. The 24 V DC rated supply and 2 W typical power loss keep it within the S7-200 bus capacity.
Fit and integration into a control panel
The module measures 46 mm wide, 80 mm high, and 62 mm deep — it snaps onto the S7-200 DIN rail alongside the CPU and other expansion modules. The width is the critical dimension for rack planning; a full complement of modules must fit within the CPU's address limit. Each digital output is rated for 750 mA at signal '1', with inductive shutdown voltage clamped to L+ (-48 V). There is no short-circuit protection on the outputs, so the downstream load wiring must be fused or the output point protected externally. The digital inputs draw 4 mA typical at 24 V DC per channel. This is a standard sink for S7-200 inputs; a 3-wire proximity sensor or limit switch drives it directly without a separate interface relay.
Sourcing this S7-200 CN module today
It was produced for the China market and may not carry the agency marks required for North American panels. Verify the local code requirements before specifying it into a new build. As a spare-part item, the 6ES7223-1BF22-0XA8 is sourced through independent distribution channels. No stock-holding claim is made here; each order is placed on demand.