Siemens 6ES7214-1BD23-0XB0 CPU 224 Compact Unit

The Siemens 6ES7214-1BD23-0XB0 CPU 224 compact unit provides a reliable control solution for the SIMATIC S7-200 PLC family. This integrated unit operates on an AC power supply of 100 V to 230 V, making it suitable for diverse global power infrastructures . It delivers a bit instruction processing time of just 0.22 µs, ensuring fast and responsive control . The unit supports PROFIBUS DP expansion for enhanced communication capabilities .

Technical Specifications of Siemens 6ES7214-1BD23-0XB0

The Siemens 6ES7214-1BD23-0XB0 integrates 14 digital inputs (24 V DC) and 10 digital outputs (relay type, 2 A per channel) . It includes 12 KB of program memory and 8 KB of data memory for application storage . The unit features an RS-485 communication interface and supports expansion with up to 7 S7-22x series modules . It maintains data retention using a high-performance capacitor or an optional battery module .

Parameter	Specification
Model Number	Siemens 6ES7214-1BD23-0XB0
Product Type	CPU 224 Compact Unit
Product Family	SIMATIC S7-200
Power Supply	100 V to 230 V AC
Digital Inputs	14 (24 V DC)
Digital Outputs	10 (Relay, 2 A)
Program Memory	12 KB (8 KB with runtime edit)
Data Memory	8 KB
Bit Processing Speed	0.22 µs
Communication Interface	1x RS-485 (PPI/Freeport)
High-Speed Counters	6 (30 kHz each)
Analog Potentiometers	2 (8-bit resolution)
Dimensions (W x H x D)	120.5 mm x 80 mm x 62 mm
Weight	Approx. 0.41 kg
Protection Class	IP20
Product Lifecycle	Discontinued (PM410 – limited spares)

Integration and Application

The Siemens 6ES7214-1BD23-0XB0 mounts on a standard DIN rail and connects to field devices through integrated I/O terminals. It supports expansion with up to 7 extension modules, allowing maximum configurations of 168 digital I/O points . The CPU includes 6 high-speed counters for precise measurement tasks. The relay outputs handle resistive loads of up to 2 A, making it suitable for controlling contactors and indicator lamps. This compact unit fits small to medium control systems and is a perfect replacement part for S7-200 system maintenance .