Signal Board 2DI/2DO

Siemens 6ES7223-0BD30-0XB0 is a compact digital input/output signal board designed for use with SIMATIC S7-1200 programmable logic controllers. It provides additional digital I/O channels directly on the CPU, supporting flexible system expansion.

Key Features

• Type: SB 1223, DI 2x24 V DC / DQ 2x24 V DC

• Digital Inputs:

  • Number: 2

  • Type: 24 V DC, current-sinking

  • Input voltage (signal "0"): 0 to 5 V

  • Input voltage (signal "1"): +15 to +30 V

  • Input current (signal "1"): 7 mA (typical)

  • Input delay: Parameterizable (0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms, 12.8 ms)

  • Input characteristic: IEC 61131, Type 1

  • Cable length (shielded): Up to 50 m

• Digital Outputs:

  • Number: 2

  • Type: 24 V DC, MOSFET, solid-state (current-sinking/current-sourcing)

  • Output current (signal "1"): 0.5 A (max)

  • Output voltage (signal "1"): ≥20 V (min), 24 V (rated)

  • Switching capacity:

    • Resistive load: 0.5 A

    • Lamp load: 5 W

  • Short-circuit protection: No

  • Cable length (shielded): Up to 50 m

• Supply Voltage:

  • Permissible range: 20.4 V to 28.8 V DC

  • From backplane bus (5 V DC): 50 mA (typical)

  • Power loss: 1 W (typical)

• Diagnostics:

  • Diagnostics indication LED: Yes (for inputs and outputs)

  • Alarms: Yes

  • Diagnostics function: Yes

• Interrupts:

  • Parameterizable for standard, interrupt, and technological functions

• Protection:

  • Protection class: IP20

  • Ambient temperature (operation): -20°C to +60°C (horizontal), -20°C to +50°C (vertical)

  • Ambient temperature (storage/transport): -40°C to +70°C

  • Relative humidity: Up to 95% at 25°C (non-condensing)

• Dimensions: 38 mm (width) × 62 mm (height) × 21 mm (depth)

• Weight: Approx. 40 g

• Certifications: CE, CSA, UL, cULus, FM, RCM (formerly C-TICK), KC, Marine

Applications

• Expansion of digital I/O for SIMATIC S7-1200 PLCs

• Automation of small to medium industrial processes

• Integration into control cabinets and machinery