May 27, 2026

3DM476.6 Digital Input Module

The 3DM476.6 is a high-density digital input module developed for B&R SYSTEM 2005 series. It features 16 input channels and supports both 24 VDC and 24 VAC signals. The module is divided into four electrically isolated groups and equipped with a 1 ms hardware filter to suppress industrial interference. With DSUB connectors for easy wiring and LED indicators for status feedback, it delivers stable and accurate signal acquisition. Compact in structure and reliable in performance, it is an essential signal collection component for various industrial automation systems.

Description

3DM476.6 Digital Input Module

Product Introduction

Basic Information

Model: 3DM476.6
Brand: B&R (Bernecker + Rainer, ABB Group)
Series: SYSTEM 2005
Product Type: Digital Input Module
Input Channels: 16 channels, 24 VDC / 24 VAC
Input Mode: Sink and source selectable
Input Filter: 1 ms hardware delay
Isolation Design: 4 electrically isolated groups
Connection Interface: DSUB connector
Status Indicators: Independent LED for each channel, power and fault indicators
Power Supply: 5 VDC supplied by system backplane
Protection Class: IP20
Operating Temperature: 0 °C to 60 °C
Storage Temperature: -25 °C to 70 °C
Relative Humidity: 5% to 95%, non-condensing
Certifications: CE, UL, EAC, UKCA
Installation: Occupies one standard slot on SYSTEM 2005 backplane, DIN rail mountable

Function and Positioning

This module acts as a front-end signal acquisition interface in industrial control systems. It collects on-off signals from field sensors, limit switches, pushbuttons and other devices, and converts them into standard logic signals for the main controller. The grouped electrical isolation effectively avoids signal crosstalk and improves system safety. As a universal high-density digital input module, it simplifies system layout and wiring, and is widely used to complete real-time signal monitoring for automated production equipment.

Core Performance Parameters

High-density Acquisition: 16 input channels meet the demand for large-scale discrete signal collection
Wide Signal Compatibility: Supports 24 VDC and 24 VAC, compatible with various field sensors
Flexible Wiring: Sink and source modes are optional to adapt to different wiring requirements
Excellent Anti-interference: 1 ms filter and group isolation ensure stable signal transmission
Real-time Diagnosis: LED indicators realize quick status check and fault location
Industrial Durability: Resists vibration and shock, adapting to harsh workshop environments
EMC Compliance: Meets industrial electromagnetic compatibility standards
System Compatibility: Fully compatible with all CPU modules, backplanes and supporting software of B&R SYSTEM 2005 series

General Compatible Accessories

B&R SYSTEM 2005 series backplane modules and power supply units
SYSTEM 2005 CPU modules for logic control and data processing
DSUB connecting cables and matching wiring accessories
24 VDC / 24 VAC field devices: proximity sensors, photoelectric sensors, limit switches and pushbuttons
Shielded cables for stable signal transmission
B&R Automation Studio for module configuration, programming and fault diagnosis
DIN rail fixing parts and standard control cabinet accessories

Applicable Equipment Fields

Factory Automation: Assembly lines, packaging machinery and automated production cells
Industrial Machinery: Machine tools, textile machines, printing equipment and plastic processing machinery
Process Industry: Water treatment, food, beverage and pharmaceutical production equipment
Logistics Automation: Conveyors, automatic sorting machines and warehouse handling devices
Building Automation: Industrial HVAC systems, access control and lighting control equipment
General Industrial Control: All automation systems requiring high-density digital signal acquisition

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