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Siemens
6ES7223-1PH22-0XA8 EM223, 8DI/8DO Rel.
Siemens SIMATIC S7-200 CN EM 223 Digital I/O Expansion Module – 6ES7223-1PH22-0XA8 featuring 8 × 24V DC digital inputs and 8 × relay digital outputs. Designed for compatible S7-22X PLC CPUs, providing 16 additional I/O points for sensors, switches, contactors and industrial control equipment. Ideal for S7-200 PLC expansion, machine automation, maintenance and replacement applications.
Stock: 0SKU: SEN-SIEMENS-6ES7223-1PH22-0XA8Model: 6ES7223-1PH22-0XA8
BDT 9,200BDT 9,300
Final pricing may vary by configuration, quantity, delivery and project requirements.
Product overview
Siemens SIMATIC S7-200 CN EM 223 Digital I/O Module – 6ES7223-1PH22-0XA8
The Siemens SIMATIC S7-200 CN EM 223, part number 6ES7223-1PH22-0XA8, is a digital input/output expansion module designed for compatible SIMATIC S7-200 / S7-22X PLC systems.
This module provides 8 digital inputs at 24V DC together with 8 relay digital outputs, allowing additional sensors, switches, contactors, relays and other field devices to be integrated into an existing S7-200 automation system.
8 Digital Inputs
The EM 223 provides 8 × 24V DC digital inputs for receiving signals from compatible industrial sensors, switches, limit switches, push buttons and other field devices.
The digital inputs support sink/source configuration, providing flexibility for different industrial control wiring arrangements.
8 Relay Digital Outputs
The module includes 8 relay outputs for switching compatible external control loads. Siemens specifies the relay outputs for up to 2A per channel, subject to the electrical and load limitations specified in the S7-200 documentation.
Combined Input & Output Expansion
By combining 8 DI + 8 relay DO in one module, the EM 223 provides a convenient way to expand an S7-200 PLC without installing separate input and output modules.
Designed for S7-22X CPUs
The EM 223 is designed for compatible Siemens SIMATIC S7-22X CPUs. It is particularly useful for maintaining, repairing or expanding existing S7-200 CN automation installations.
Key Specifications
| Manufacturer | Siemens |
| Product Family | SIMATIC S7-200 CN |
| Module Series | EM 223 |
| Part Number / MPN | 6ES7223-1PH22-0XA8 |
| Product Type | Digital Input / Output Expansion Module |
| Compatible CPU Family | SIMATIC S7-22X |
| Digital Inputs | 8 |
| Digital Input Voltage | 24V DC |
| Input Configuration | Sink / Source |
| Digital Outputs | 8 |
| Output Type | Relay |
| Relay Output Rating | Up to 2A / Channel |
| Total I/O Points | 16 (8 DI + 8 DO) |
| Application | PLC I/O Expansion / Industrial Automation |
Typical Applications
- Siemens S7-200 PLC Expansion
- Industrial Machine Control
- Factory Automation
- Production Equipment
- Conveyor Systems
- Pump and Motor Control
- Packaging Machinery
- Control Panel Expansion
- Sensor Input Expansion
- Relay Output Control
- Industrial Equipment Repair
- Legacy S7-200 System Maintenance
Ideal Replacement for Existing S7-200 CN Systems
The 6ES7223-1PH22-0XA8 is particularly useful for maintaining existing machines and automation systems already using S7-200 CN hardware. Using the matching part number helps maintain the original I/O arrangement and system configuration.
Important Compatibility Information
This product is specifically identified as the S7-200 CN EM 223 version with 8 × 24V DC digital inputs and 8 × relay outputs.
Do not confuse this module with similar EM 223 versions using transistor outputs or different numbers of I/O channels. Always compare the complete Siemens part number 6ES7223-1PH22-0XA8 with the existing module before replacement.