What this module is, and what it fits
The Siemens 6ES7223-1BH22-0XA8 is a digital combi I/O module for the S7-200 CN family, carrying 8 inputs (24 V DC, sink/source) and 8 source outputs (24 V DC, 0.75 A per channel). It is classified as a spare part and carries CE approval only – no UL, CSA, or other agency marks are listed. Rated width is 71.2 mm, depth 62 mm, height 80 mm, and typical power loss is 3 W. Input side accommodates both sinking and sourcing field devices; outputs are sourcing (high-side) with inductive shutdown clamped to L+ (-48 V). No short-circuit protection is built into the output stage.
How it compares with 6ES7222-1BF22-0XA0
The 6ES7222-1BF22-0XA0 is an 8-output-only module with the same per-channel rating (0.75 A, 24 V DC) but a narrower width of 45 mm compared to 71.2 mm for the combi module. If your BOM requires only the output side, the 6ES7222-1BF22-0XA0 drops in as a physically smaller alternative, but it provides no digital inputs and the wiring pattern differs. A panel wired for the combi module cannot simply swap to the output-only module without removing the input field wiring.
Sourcing and procurement posture
Lifecycle stage is listed as current, but the module carries the 'spare part' descriptor – meaning it is not a primary production item and may have constrained availability. For a line-down replacement on an S7-200 CN system, this is the exact form-fit I/O card. No official successor is declared. Sourcing is on a quoted-to-order basis; submit an RFQ to confirm lead time and current batch availability. The only compliance documentation on file is CE approval – no UL, CSA, or other marks are listed.