Product Description: DO135 (7DO135.70) Digital Output Module
May 13, 2026

Product Description: DO135 (7DO135.70) Digital Output Module

General Description The DO135 (7DO135.70) is a high-performance, compact digital output module designed for precise control of field actuators in demanding industrial environments. As part of B&R's System 2003 modular I/O platform, this screw-in module converts control signals from the host controller into switching signals to drive external devices such as relays, valves, indicators, and small loads. It features a robust, coated design optimized for resistance to condensation and corrosive gases, ensuring exceptional reliability in harsh industrial settings.

Description

贝加莱12.jpg

Product Description: DO135 (7DO135.70) Digital Output Module

Manufacturer: B&R Industrial Automation
Part Number: DO135 (Full Model: 7DO135.70)
Product Type: Digital Output Module
Series: System 2003 (Screw-in I/O Series)

1. General Description

The DO135 (7DO135.70) is a high-performance, compact digital output module designed for precise control of field actuators in demanding industrial environments. As part of B&R's System 2003 modular I/O platform, this screw-in module converts control signals from the host controller into switching signals to drive external devices such as relays, valves, indicators, and small loads. It features a robust, coated design optimized for resistance to condensation and corrosive gases, ensuring exceptional reliability in harsh industrial settings.

2. Key Features

  • 4 Isolated FET Output Channels: Four independent, field-effect transistor (FET) output channels for non-contact, long-life switching.

  • Wide Voltage Compatibility: Operates on 12–24 VDC supply and output voltage range.

  • Multi-Operation Modes: Supports standard ON/OFF, Pulse Width Modulation (PWM), and high-speed TPU (Timer Processing Unit) modes.

  • Harsh Environment Resilient: Circuit board with protective coating for anti-condensation and corrosion resistance (passes BMW GS 95011-4 & EN 60068-2-60 tests).

  • Full Galvanic Isolation: Provides electrical isolation between channels and the backplane bus for superior noise immunity.

  • Advanced Diagnostics: LED status indicators for module health and channel activity.

  • Compact Screw-in Design: Space-saving form factor, hot-swappable for easy installation and maintenance.

  • High-Speed Switching: Fast response time for real-time control applications.

  • System Compatibility: Seamless integration with B&R System 2003 controllers via the backplane bus.

  • Global Certifications: CE, cULus, EAC, UKCA certified.

3. Technical Specifications

Output & Performance Data

  • Number of Outputs: 4 channels (FET, PNP-type)

  • Output Type: Solid-state FET (Field-Effect Transistor)

  • Output Voltage Range: 12–24 VDC (nominal 24 VDC)

  • Output Current: 0.1 A (100 mA) per channel (continuous)

  • Total Current: Max. 0.4 A for the module

  • Switching Time: < 100 µs (typical)

  • Leakage Current (OFF State): < 100 µA

  • Voltage Drop (ON State): < 1.0 V @ 0.1 A

  • Operating Modes:

    • Standard ON/OFF control

    • PWM (Pulse Width Modulation): adjustable period/duty cycle

    • TPU Mode: high-speed signal processing

  • Isolation Voltage: 500 VDC (channel-to-backplane, channel-to-channel)

Electrical Data

  • Supply Voltage: 24 VDC (±10%)

  • Power Consumption: Approx. 0.5 W

  • Overvoltage Protection: Transient voltage suppression

  • Reverse Polarity Protection: Yes

Mechanical Data

  • Dimensions (W x H x D): 25 mm x 102 mm x 76 mm

  • Weight: Approx. 0.1 kg (5 oz)

  • Mounting: Screw-in to System 2003 backplane

  • Terminal Block: Requires TB712 terminal block (sold separately)

  • Connection: Screw terminals (0.5–1.5 mm²)

  • Protection Rating: IP20 (front)

Environmental Data

  • Operating Temperature: -25°C to +60°C

  • Storage Temperature: -40°C to +85°C

  • Relative Humidity: 5–95% RH, non-condensing

  • Vibration Resistance: IEC 60068-2-6 (10–500 Hz, 1 g)

  • Shock Resistance: IEC 60068-2-27 (15 g, 11 ms)

  • Specialized Resistance: Anti-condensation, corrosion-resistant coating

  • Pollution Degree: 2

  • Overvoltage Category: II

Safety & Certifications

  • Safety Standards: EN 61010, EN 61131-2

  • EMC Compliance: EN 61326, EN 55011, EN 61000-6-2/-4

  • Certifications: CE, cULus (E180196), EAC, UKCA

4. Typical Applications

The DO135 module is ideal for precision control tasks across industries, especially in harsh environments:
  • Factory Automation: Pilot lights, signal buzzers, small relays

  • Material Handling: Solenoid valves for pneumatic/hydraulic systems

  • Packaging Machinery: Film drives, sealing elements, counters

  • Specialty Machinery: Printing, textile, and semiconductor equipment

  • Test & Measurement: High-speed switching, PWM control for actuators

  • Environmental Chambers: Control of heaters, fans, and dampers

  • Hazardous Locations: Suitable for Class I, Division 2 areas

  • Transportation & Machinery: On-board control, engine management

5. Configuration & Integration

  • Software Setup: Configurable via B&R Automation Studio™; select operation mode (Standard/PWM/TPU), set parameters.

  • Status Indicators:

    • Green LED: Module power/ready

    • Channel LEDs: Indicate ON/OFF state for each output

  • Hot-Swappable: Safe insertion/removal under power (system-dependent).

  • Bus Interface: Direct communication with B&R CPU via System 2003 backplane.

  • Compatibility: Fully compatible with B&R 2003 system CPUs and I/O nodes.

6. Ordering Information

  • Base Part Number: 7DO135.70

  • Accessory: TB712 terminal block (required for field wiring)

  • Standard Package: 1 x DO135 digital output module

  • Warranty: Standard 1-year manufacturer warranty


Get a Quote