Siemens SIMATIC S7-1200 SB 1223 Signal Board 4 DI 5V DC / 4 DO 5V DC 6ES7223-7AF50-0XB0

The Siemens SIMATIC S7-1200 SB 1223 Signal Board is a compact digital input/output expansion module designed for the SIMATIC S7-1200 controller system. It provides 4 digital inputs and 4 digital outputs, all operating at 5V DC, making it ideal for high-speed switching applications in industrial automation. The signal board plugs directly into the CPU, offering a space-saving solution without additional wiring.

Advantages

This signal board enhances the flexibility of your S7-1200 system by adding local I/O points. Its compact design (38 x 38 x 10 mm) allows for easy integration into tight spaces. The high output switching frequency (up to 100 kHz) supports fast control tasks, while the configurable input delay (0.2 ms to 12.8 ms) ensures reliable signal processing. With screw terminal connections, installation is straightforward and secure.

Suitable for

• Industrial automation and control systems
• High-speed digital input/output applications
• Expanding I/O capacity of SIMATIC S7-1200 CPUs
• Space-constrained control cabinets

Key specifications

• Product type: Signal Board (SB)
• Series: SIMATIC S7-1200
• Digital inputs: 4 (5V DC)
• Digital outputs: 4 (5V DC, transistor)
• Output current per channel: 0.5 A (total 2 A)
• Input delay: 0.2 ms to 12.8 ms (configurable)
• Output switching frequency: max. 100 kHz (resistive load)
• Power consumption: approx. 0.5 W (from backplane)
• Operating temperature: 0 to 50 °C
• Dimensions (W x H x D): 38 mm x 38 mm x 10 mm
• Connection: screw terminals

Recommendations

For optimal performance, use this signal board with a compatible SIMATIC S7-1200 CPU. Ensure the power supply from the backplane is stable at 5V DC. The module is not isolated, so consider external isolation if required for your application.