Siemens SM1223 Digital output, 8DI/8DO, transistor 0.5A

Product Overview

The SIMATIC S7-1200 Digital I/O Module SM 1223 provides balanced digital signal processing with 8 inputs and 8 transistor outputs. Featuring 24V DC sink/source inputs and 0.5A transistor outputs, this module delivers efficient I/O expansion for industrial automation applications requiring moderate-density digital interfacing with fast-switching transistor outputs.

Key Features

• 8 Digital Inputs + 8 Transistor Outputs: Balanced I/O configuration with 24V DC sink/source inputs and 0.5A transistor outputs
• Sink/Source Input Compatibility: Universal input configuration supporting both NPN and PNP sensors with flexible wiring options
• Transistor Output Performance: 0.5A switching capacity with fast response times for LED indicators and medium-power loads
• Compact Balanced Design: 45mm width with optimal 8+8 I/O ratio for space-efficient installations
• Integrated Diagnostics: Status LEDs and comprehensive fault detection for easy monitoring and maintenance
• High-Speed Switching: Optimized transistor outputs with 0.2ms response time for rapid signal processing

Technical Specifications

• I/O Configuration: 8 DI (24V DC) + 8 DO (Transistor 0.5A)
• Dimensions: 45 × 100 × 75 mm (W × H × D) | Weight: 0.196 kg
• Input Voltage: 24V DC sink/source (20.4-28.8V range) | Input Current: 4mA per channel
• Output Type: Transistor outputs | Output Current: 0.5A per channel
• Operating Temperature: -25°C to +60°C | Protection: IP20
• Connection: Screw/spring clamp terminals | Response Time: 0.2ms signal delay

Applications & Integration

Primary Applications:

• Manufacturing automation with balanced I/O requirements and mixed sensor types
• Machine control systems requiring transistor-switched outputs for indicators and actuators
• Process control applications with moderate-power digital switching needs

System Compatibility:

• All S7-1200 CPU models except CPU 1211C (requires signal modules)
• TIA Portal configuration with STEP 7 Basic programming environment
• Up to 8 modules per CPU with hot-swappable installation
• Standard 35mm DIN rail mounting with integrated connections

Quality & Compliance

• Status: Active Product (PM300) | Origin: Germany
• EAN: 6940408101982 | UPC: 887621292881
• RoHS Compliant: Since 15.03.2013 | WEEE: Take-back obligation applies
• REACH: Contains lead, lead oxide, morpholinopropanone, and BPA above 0.1% w/w (safe when used as intended)

Package Contents

• 1 × SM 1223 Module (8 DI/8 DO Transistor), technical documentation, DIN rail hardware

Download existing graphical data for this product:

• Technical Datasheet
• Product Information Page
• SM 1223 Product Family
• TIA Portal Documentation
• Technical Specifications