SIMATIC S7-200 CN Digital I/O Expansion Module (EM 223), 6ES7223-1PM22-0XA8

SIMATIC S7-200 CN, Digital I/O EM 223, only for S7-22X CPU, 32 DI 24 V DC, sink/source, 32 DO relay, 2 A/channel this S7-200 CN product only has CE approval

6ES7223-1PM22-0XA8

? Product Overview

• Designation: SIMATIC S7-200 CN Digital I/O Expansion Module (EM 223)
• Part Number: 6ES7 223‑1PM22‑0XA8
• Form-factor: DIN-rail modular unit, connects directly to S7‑200 CN CPU series
• Status: Discontinued as of October 1, 2021; now available only as a spare part

⚙️ I/O Configuration

• Inputs: 32× digital inputs, 24 V DC, sink/source capable
• Outputs: 32× relay outputs, each rated at up to 2 A per channel

? Electrical & Mechanical Specs

• Output switching: Relay contacts support both DC and AC loads (typical)
• Isolation: Full galvanic isolation between inputs, outputs, relay contacts, and the CPU bus
• Weight: Approx. 0.525 kg
• Protection rating: IP20, designed for industrial cabinet mounting
• Approvals: CE-marked; intended for S7‑200 CN systems only

?️ Typical Applications

• Ideal for applications that require a large number of digital signals and relay-switched circuits (e.g., controlling motors, solenoids, signal lights)
• Often used in machine control tasks, process automation, and scenarios needing moderate current switching with isolation

? Lifecycle & Availability

• Product cancelled in October 2021, but still offered as a spare part via Siemens PCM catalog and select distributors
• Lead time: Typically ~10 days from factory
• Second-hand or surplus options may be available on secondary marketplaces (e.g., eBay listings in the $300–500 range