About

Key Features:

• 2 Digital Inputs (DI): Supports integration of on/off sensors or switches for reliable digital signal acquisition.

• 2 Digital Outputs (DO): Provides on/off control for actuators, relays, or other field devices.

• Compact & Modular Design: Space-saving design for seamless integration into control systems with limited space.

• S7-200 Smart PLC Compatibility: Fully compatible with Siemens S7-200 Smart PLC, with easy configuration and programming via Siemens TIA Portal.

• Industrial-Grade Durability: Engineered for reliable performance in harsh environments with strong protection against electrical interference.

Applications:

• On/Off Control: Suitable for devices requiring simple switching functions, such as relays, lights, and motors.

• Automation Systems: Ideal for small to medium automation projects, including conveyors, packaging machines, and basic control tasks.

• Monitoring & Alarming: Effective for capturing digital input signals from sensors or switches and triggering corresponding outputs.

   

General Information

• Product Type: SB DT04, DI 2×24 V DC, DO 2×24 V DC / 0.75 A

• CiR (Configuration in RUN): Not supported

• Reparameterization in RUN: No

Supply Voltage

• Rated Voltage: 24 V DC (−15% / +20%)

• Permissible Range: 20.4 V to 28.8 V DC

Input Current

• Typical Consumption: 50 mA

Power Loss

• Typical Loss: 1 W

Digital Inputs

• Number of Inputs: 2

• Input Voltage:

  • Type: DC

  • Rated: 24 V

  • Signal “0”: max. 5 V

  • Signal “1”: min. 15 V

• Input Current:

  • Signal “0”: max. 1 mA

  • Signal “1”: typ. 2.5 mA

• Input Delay:

  • 0 → 1: max. 20 µs

  • 1 → 0: max. 20 µs

• Cable Length:

  • Shielded: max. 500 m

  • Unshielded: max. 300 m

Digital Outputs

• Number of Outputs: 2

• Short-Circuit Protection: No

• Output Voltage:

  • Signal “0”: max. 0.1 V

  • Signal “1”: max. 20 V

• Output Delay (Resistive Load):

  • 0 → 1: max. 2 µs

  • 1 → 0: max. 10 µs

Diagnostics / Status

• LED Indication:

  • Input status: Yes

  • Output status: Yes

Protection

• IP Rating: IP20

Standards & Approvals

• CE Mark: Yes

Dimensions

• Width: 35 mm

• Height: 52.2 mm

• Depth: 16 mm

Weight

• Approx.: 18.1 g

Technical Details