Regional variant with CE-only approval
The Siemens 6ES7214-2BD23-0XB8 is a SIMATIC S7-200 CN CPU 224XP — the China-market variant of the well-known compact PLC. This specific order code carries CE approval only, not the full UL/CSA suite that the international version (6ES7214-2BD23-0XB0) typically includes. For a panel destined for a CE-jurisdiction line, that is fine; for a UL-listed machine, the approval gap matters at panel inspection.
I/O count and analog channels
14 digital inputs and 10 relay outputs on a single compact base unit — the relay outputs handle up to 2 A per channel, so small motor starters, contactors, and solenoid valves switch directly without an interposing relay. Two analog inputs and one analog output are built in, covering a 4-20 mA or 0-10 V signal chain for a pressure transmitter and a control valve without an expansion module.
Panel fit and power budget
The 140 mm width by 80 mm height by 62 mm depth fits the standard S7-200 footprint — a DIN-rail mount that matches the earlier CPU 22x series. Typical power loss is 11 W, which is modest enough that a sealed enclosure with minimal ventilation still stays within the 55 °C ambient rating of the S7-200 family.