General Information

• Brand: Siemens
• Part Number: 6ES7223-1PL32
• Product Series: SIMATIC S7-1200
• Product Type: Digital Input/Output (I/O) Module (混合型数字 I/O 模块)
• Compatibility: Specifically designed for S7-1200 CPU systems, compatible with TIA Portal programming software.

Technical Specifications

1. I/O Configuration

• Digital Inputs: 16 channels
  • Input Voltage: 24V DC (sinking/sourcing, PNP/NPN compatible)
  • Input Current: Typical 7mA at 24V DC
  • Response Time: ≤ 10ms (standard mode); optional fast mode for critical applications
  • Input State Detection: Off (0V–5V DC), On (11V–30V DC)
• Digital Outputs: 16 channels
  • Output Type: Relay output (mechanical relay, suitable for switching AC/DC loads)
  • Output Voltage Range: 24V DC / 230V AC
  • Maximum Output Current: 2A per channel; 8A total for all channels (group protection)
  • Switching Frequency: ≤ 1Hz (for resistive loads), suitable for low-frequency switching tasks

2. Power Supply

• Power Source: Powered via the S7-1200 backplane bus (no external power required for module operation)
• Load Power: Separate external power supply required for output loads (matches load voltage: 24V DC or 230V AC)

3. Operating Environment

• Temperature Range: Operating: -10°C to +60°C; Storage: -25°C to +70°C
• Humidity: 5%–95% (non-condensing, compliant with IEC 61131-2 environmental standards)
• Vibration Resistance: 5Hz–150Hz, 0.5g acceleration (IEC 60068-2-6)
• Shock Resistance: 15g acceleration (11ms duration, IEC 60068-2-27)

4. Mechanical Characteristics

• Dimensions (W×H×D): 45mm × 100mm × 75mm (compact design, saves control cabinet space)
• Mounting Method: DIN rail mounting (conforms to IEC 60715, 35mm standard rail)
• Protection Level: IP20 (front panel, prevents dust and small debris from entering internal components)

Functional Features

1. Mixed I/O Integration: Combines 16 digital inputs and 16 relay outputs in one module, reducing the number of modules needed for systems requiring both input and output functions.
2. Relay Output Advantages: Relay outputs isolate the control circuit from the load circuit, protecting the S7-1200 CPU and supporting both AC and DC loads (no need for separate AC/DC output modules).
3. Status Monitoring: Equipped with LED indicators for each input (green: On, off: Off) and output (green: On, red: Fault), enabling quick visual inspection of module operation.
4. Fault Protection: Built-in overload and short-circuit protection for output channels (group-level protection), preventing module damage from abnormal load conditions.
5. Easy Configuration: Configurable via TIA Portal software, with intuitive parameter settings for input response time and output load protection.

Application Areas

• Small to Medium-Sized Automation Systems: Ideal for S7-1200-based systems in manufacturing, packaging, and material handling.
• Load Switching Scenarios: Used to control low-frequency AC/DC loads such as solenoid valves, small motors, indicator lights, and contactors.
• Industrial Sites: Suitable for general factory automation, food and beverage processing, and building automation (e.g., HVAC control, lighting systems).