Spare-part CPU for S7-200 CN lines
The Siemens 6ES7216-2BD23-0XB8 is a CPU 226 compact device from the S7-200 CN series, identified as a spare part. It runs on AC power and provides 24 digital inputs and 16 relay outputs.
Lifecycle and compliance reality
This unit carries current lifecycle status, but the description flags it as a spare part and notes CE approval only — no UL or CSA marks on record. For a BOM that requires UL-listed components, this is a hard constraint. The S7-200 CN family is a China-market variant; the CPU 226 here uses the same form factor and backplane pinout as the standard S7-200 CPU 226, so it swaps into an existing rack without mechanical rework. Confirm the firmware version matches the application before committing the line.
Panel fit and I/O count
Dimensions are 196 mm wide, 80 mm high, and 62 mm deep — the standard S7-200 CPU 226 footprint. It clips onto the same DIN rail and mates with the standard S7-200 expansion bus connector. With 24 digital inputs and 16 relay outputs, this CPU covers medium-density discrete control for conveyors, packaging machines, or simple batch processes without needing an expansion module.