080 782 4266 🚚 Free shipping over R3,000
Contact Us
Click to enlarge
Siemens Digital I/O SM 1223, 16DI/16DO, 2A relay
Log in to view pricing
Sign in with your trade account to access live pricing and place orders. New to Rubicon Industrial Technology? Create an account in seconds.
Product Description
Product Overview
The SIMATIC S7-1200 Digital I/O Module SM 1223 delivers high-density I/O expansion with 16 digital inputs and 16 relay outputs. Featuring 24V DC sink/source inputs and 2A relay switching capacity, this module provides comprehensive digital signal processing for demanding industrial automation applications requiring extensive I/O capabilities.
Key Features
- 16 Digital Inputs + 16 Relay Outputs: Maximum I/O density with 24V DC sink/source inputs and 2A relay switching
- Sink/Source Compatibility: Universal input configuration supporting both NPN and PNP sensors
- High-Power Relay Outputs: 2A switching capacity per relay for controlling motors, solenoids, and heavy loads
- Galvanic Isolation: Complete electrical isolation between channels for enhanced system protection
- Compact High-Density Design: 70mm width with maximum I/O count for space-efficient installations
- Comprehensive Diagnostics: Channel-specific status indication and fault detection capabilities
Technical Specifications
- I/O Configuration: 16 DI (24V DC) + 16 DO (Relay 2A)
- Dimensions: 70 × 100 × 75 mm (W × H × D) | Weight: 0.319 kg
- Input Voltage: 24V DC sink/source | Input Current: 4mA per channel
- Output Rating: 2A per relay contact | Response Time: 0.2ms signal delay
- Operating Temperature: -25°C to +60°C | Protection: IP20
- Connection: Screw/spring clamp terminals | Isolation: Galvanic isolation between channels
Applications & Integration
Primary Applications:
- Large-scale manufacturing systems with extensive I/O requirements
- Motor control centers and industrial machinery automation
- Process control systems requiring high-density digital interfacing
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: 6940408102019 | UPC: 887621206949
- RoHS Compliant: Since 15.03.2013 | WEEE: Take-back obligation applies
- REACH: Contains lead, lead oxide, and BPA above 0.1% w/w (safe when used as intended)
Package Contents
- 1 × SM 1223 Module (16 DI/16 DO Relay), technical documentation, DIN rail hardware
Download existing graphical data for this product:
Additional Information
| IP Rating | IP20 |
| Country of Origin | Germany |
| Compliance/Certifications | CE / CSA / UL / cULus / FM / RCM / KC / Marine approval |
| Temperature: Operating | -20°C to 60°C (for horizontal installation) / -20°C to 50°C (for vertical installation) |
| Part Depth (mm) | 75mm |
| Part Width (mm) | 70mm |
| Part Height (mm) | 100mm |
| Weight (g) | 350g |
| Packaging size / unit | pc(s) |
| Material: Product | Plastic |
| Supply Voltage | 24 V (DC Rated Value) / 19.2 V (DC Lower Limit) / 28.8 V (DC Upper limit) |
| Voltage Output | 5 VDC to 30 VDC / 5 VAC to 250 VAC |
Technical Documentation & Downloads
Videos & Interactive Media
Product Media
Add Siemens videos or media manifest entries to showcase this product.
Interactive 3D CAD Model
🛠 Siemens 3D CAD Viewer Interactive
Tip: Use your mouse to rotate, zoom, and pan the 3D model. Click "Open Full Screen" for additional download options including STEP, DWG, 3DS, and other CAD formats.
Compatible Accessories & Components
Collection Ready
Add products to the "" collection to display compatible accessories.
Frequently Bought Together
- Choosing a selection results in a full page refresh.