Spare-part CPU for existing S7-200 CN racks
The Siemens 6ES7214-2AD23-0XB8 is a spare-part CPU 224XP from the S7-200 CN series, a compact PLC with 14 digital inputs and 10 digital outputs — all transistor type, no relay outputs on this variant. It carries CE approval only, which matters for panel certification in CE-jurisdiction installations.
I/O count and DC supply
Fourteen DC digital inputs and ten DC transistor outputs give this CPU enough on-board I/O for a small machine cell or a pump skid without an expansion rack. The 8 W typical power loss is low enough that forced cooling is not needed in a sealed enclosure, but the heat adds to the panel thermal budget.
The 140 mm width by 80 mm height by 62 mm depth footprint matches the standard S7-200 CN form factor — it slides onto the same DIN rail and mates with existing expansion modules without a panel re-drill.
Listed as current production. This is the CN (China) variant of the CPU 224XP, so it is the right spare for machines built with the S7-200 CN line.