May 27, 2026

3DM476.6 SYSTEM 2005 Digital Mixed Module

The 3DM476.6 is a high-density digital mixed input/output module designed for the B&R SYSTEM 2005 platform. Integrating 16 digital inputs and 16 transistor outputs in a compact single-slot form factor, it is engineered for general-purpose automation applications requiring a large number of discrete I/O points. The module supports both 24 VDC and 24 VAC input signals, features configurable sink/source input logic, and provides electrical isolation in groups to enhance noise immunity. With a fast 1 ms hardware input filter, comprehensive circuit protection, and LED diagnostics, it delivers reliable, cost-effective signal acquisition and actuator control for industrial machinery and production systems.

Description

3DM476.6 SYSTEM 2005 Digital Mixed Module

Product Introduction

Basic Information

Model: 3DM476.6
Brand: B&R (Bernecker + Rainer, ABB Group)
Series: SYSTEM 2005
Product Type: Digital Mixed Input/Output Module
Input Channels: 16 channels, 24 VDC/24 VAC, sink/source selectable
Input Filter: 1 ms hardware filter
Input Isolation: 4 electrically isolated groups (4 channels per group)
Output Channels: 16 transistor outputs, 24 VDC, 0.4 A per channel
Output Protection: Short circuit, overload, thermal shutdown, reverse polarity protection
Connection Interface: DSUB connector for input and output wiring
Status Indicators: Channel-specific LEDs; power and fault status LEDs
Power Supply: 5 VDC from system backplane; 24 VDC for field devices
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

The 3DM476.6 serves as a critical high-density bidirectional I/O interface in industrial control systems. It collects discrete on/off signals from field sensors, limit switches, pushbuttons, and encoders, converting them into logic signals for the main controller. Simultaneously, it translates controller commands into driving signals to operate low-power actuators such as relays, solenoid valves, and indicator lamps. The grouped electrical isolation minimizes cross-interference between field circuits and the control system, improving operational safety and noise immunity. Positioned as a cost-efficient general-purpose mixed module, it optimizes system space and wiring complexity for applications requiring a large volume of digital I/O with moderate speed and power demands.

Core Performance Parameters

High-Density I/O Integration: 16 inputs plus 16 outputs reduce slot usage and lower system costs
Flexible Input Compatibility: Sink/source configurable inputs support diverse 24 VDC/24 VAC sensor types
Group Electrical Isolation: 4 isolated input groups enhance noise rejection and system safety
Fast Signal Response: 1 ms hardware input filter balances noise suppression and signal capture speed
Reliable Output Drive: 0.4 A per channel directly controls low-power DC loads efficiently
Multi-Protection Circuitry: Built-in short circuit, overload, thermal, and reverse polarity protection safeguards the module and wiring
Intuitive Diagnostic Features: LED indicators enable real-time channel status monitoring and rapid fault localization
Industrial-Grade EMC Performance: Complies with EN 61000-6-2 standards for stable operation in electrically noisy environments
Broad Environmental Adaptability: Operates reliably across standard industrial temperature and humidity ranges
Full System Compatibility: Seamlessly works with all B&R SYSTEM 2005 CPUs, backplanes, and Automation Studio software

General Compatible Accessories

B&R SYSTEM 2005 series backplane modules and power supply units
SYSTEM 2005 CPU modules for logic, motion, and process control
DSUB-compatible cables and terminal adapters for field wiring
24 VDC/24 VAC field devices: proximity sensors, photoelectric sensors, limit switches, and pushbuttons
Low-power DC actuators: relays, solenoid valves, indicator lamps, and small DC motors
Shielded twisted-pair cables for noise-immune signal transmission
B&R Automation Studio for module configuration, programming, and diagnostic operations
DIN rail mounting hardware and standard control cabinet installation accessories

Applicable Equipment Fields

Factory Automation: High-speed assembly lines, packaging machinery, and automated material handling systems
Industrial Machinery: Machine tools, textile machines, printing presses, and plastic processing equipment
Building Automation: HVAC control systems, access control panels, and lighting management systems
Process Industry: Water treatment plants, food and beverage production lines, and pharmaceutical manufacturing equipment
Logistics Automation: Conveyor systems, automatic sorting machines, and warehouse handling equipment
General Industrial Control: All automation systems requiring high-channel-count digital I/O with moderate speed and power requirements

Contact Info