May 27, 2026

3DM476.6 Digital Mixed Module

The 3DM476.6 is a compact, high‑performance digital mixed input/output module from B&R SYSTEM 2005 series. It integrates 16 digital inputs and 16 transistor outputs in a single‑width housing, designed for 24 VDC/24 VAC field signals. With 4 electrically isolated input groups and a 1 ms hardware input filter, it delivers stable and interference‑resistant operation. Equipped with DSUB connectors for both input and output, it can be seamlessly mounted on the SYSTEM 2005 backplane, serving as a cost‑effective all‑in‑one I/O solution for small‑to‑medium control systems.

Description

3DM476.6 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‑channel, 24 VDC/24 VAC, 4 electrically isolated groups
Input Filter: 1 ms hardware delay
Input Wiring: Sink/source configurable
Output Channels: 16‑channel transistor output, 24 VDC, 0.4 A per channel
Output Protection: Thermal overload, short‑circuit, reverse polarity protection
Connection: DSUB connectors for inputs and outputs
Status Indicators: LED per channel for input/output status
Power Supply: Backplane‑powered (5 VDC)
Power Consumption: Max 2.5 W
Protection Class: IP20
Operating Temperature: 0 °C to +60 °C
Storage Temperature: -25 °C to +70 °C
Humidity: 5%–95%, non‑condensing
Certifications: CE, UL, EAC, UKCA
Installation: 1 standard slot on SYSTEM 2005 backplane, DIN rail mountable

Function and Positioning

The 3DM476.6 functions as a combined signal interface in industrial control systems, capturing discrete on/off signals from field sensors and switches while driving actuators, relays, and small loads. Its 4‑group input isolation minimizes crosstalk and enhances safety; the 1 ms filter ensures reliable detection of valid signals. The 16 transistor outputs provide efficient, protected switching for 24 VDC loads. Positioned as a versatile, space‑saving mixed I/O module, it simplifies system design by reducing the need for separate input and output modules, ideal for compact machines and distributed I/O applications.

Core Performance Parameters

Mixed I/O Capacity: 16 inputs + 16 outputs for integrated monitoring and control
Isolation Performance: 4 electrically isolated input groups to suppress interference
Fast Response: 1 ms hardware input filter for stable signal acquisition
Flexible Inputs: 24 VDC/24 VAC compatible, sink/source configurable
Output Capability: 24 VDC transistor outputs, 0.4 A per channel, 75% simultaneous load factor
Output Protection: Thermal, short‑circuit, and reverse polarity protection
Diagnostic Features: Channel‑specific LED indicators for quick status and fault check
Industrial Durability: Withstands vibration, shock, and wide temperature ranges
EMC Compliance: Meets strict industrial electromagnetic compatibility standards
System Compatibility: Fully interoperable with B&R SYSTEM 2005 CPUs, backplanes, and Automation Studio

General Compatible Accessories

B&R SYSTEM 2005 series backplane modules and power supply units
SYSTEM 2005 CPU modules for logic control and data processing
24 VDC/24 VAC field devices: proximity sensors, limit switches, photoelectric sensors
24 VDC actuators: relays, contactors, solenoid valves, small motors
Shielded DSUB cables and flat cables for reliable I/O connection
B&R Automation Studio software for configuration, programming, and diagnostics
DIN rail mounting components and standard control cabinet hardware

Applicable Equipment Fields

Factory Automation: Compact assembly stations, small production lines, packaging machinery
Industrial Machinery: Textile machines, printing equipment, plastic processing machines, machine tools
Process Control: Water treatment, HVAC systems, food and beverage processing
Logistics Automation: Conveyors, sorting systems, warehouse handling equipment
Building Automation: Industrial HVAC, lighting control, access control systems
General Industrial Control: Any automation system requiring integrated digital I/O for monitoring and control

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