PLC | Siemens | 6ES7 223-1PH32-0XB0 S7-1200 Digital I/O SM 1223 6ES7223-1PH32-0XB0

Product Description: Siemens 6ES7223-1PH32-0XB0

The Siemens 6ES7223-1PH32-0XB0 is a digital I/O signal board (SB 1223) for the SIMATIC S7-1200 programmable logic controller system. This compact expansion module provides 8 digital inputs (24 V DC) and 8 relay outputs, allowing users to add I/O functionality directly to the CPU module without increasing the overall mounting width. It connects via a front plug-in interface and is powered by the S7-1200 base unit. The SB 1223 is ideal for small-scale applications requiring a mix of digital inputs and high-isolation relay outputs for switching AC/DC loads such as motors, valves, or lights.

Key Features

• Integrated Expansion: Adds 8 DI + 8 DO directly to an S7-1200 CPU
• Relay Outputs: Electrically isolated for AC/DC switching (up to 2 A per channel)
• Space-Saving: Mounts directly on the front of the CPU with no increase in width
• 24 V DC Inputs: Standard PNP-compatible digital input interface
• Easy Installation: Tool-free plug-in design with no external wiring required for bus or power
• TIA Portal Configurable: Fully supported in Siemens TIA engineering software

Technical Specifications

• Product Type: Signal Board (Digital I/O)
• Part Number: 6ES7223-1PH32-0XB0
• Series: SIMATIC S7-1200
• Module Type: SB 1223
• Digital Inputs: 8 × 24 V DC
• Digital Outputs: 8 × Relay (AC/DC, up to 2 A per channel)
• Output Type: Electrically isolated relay outputs
• Mounting: Plug-in to front of S7-1200 CPU
• Power Supply: Supplied via the CPU
• Input Delay: Configurable (default ~3 ms)
• Status LEDs: Per channel (input and output indication)
• Operating Voltage Range: 20.4–28.8 V DC (for inputs)
• Operating Temperature: -20°C to +55°C
• Protection Class: IP20
• Dimensions (W × H × D): Matches front CPU slot size
• Weight: Approx. 120 g

Application Areas

• Small Machines and Control Panels: Ideal for compact systems where space is limited
• Building Automation: Controls HVAC components, lights, and fans
• Process Equipment: Monitors sensor inputs and switches actuators like valves and relays
• Retrofit Projects: Enhances S7-1200 I/O without requiring a larger enclosure or rack

Advantages

• Integrated Design: No additional DIN rail space required
• Relay Outputs: Suitable for both AC and DC load switching
• Seamless Configuration: Easily added in TIA Portal with full diagnostics
• Cost-Effective Expansion: Adds mixed I/O at low cost and minimal footprint
• Reliable and Industrial-Grade: Siemens quality for continuous operation in automation environments