May 27, 2026

B&R 3AT350.6 Analog Input Module (SYSTEM 2005 Series)

The 3AT350.6 is a high‑precision temperature input module designed for the B&R SYSTEM 2005 platform. It provides 4 channels of PT100 RTD inputs with 3‑wire connection capability, measuring temperatures from ‑50 °C to +450 °C. Engineered for reliable thermal measurement in industrial environments, it features galvanic isolation between control and field sides, robust EMC performance, and a compact single‑slot design. The module converts resistance‑based temperature signals into digital data for the PLC, ensuring accurate and stable monitoring in process and factory automation applications.

Description

B&R 3AT350.6 Analog Input Module (SYSTEM 2005 Series)

Product Introduction

Basic Information

Model: 3AT350.6
Brand: B&R (Bernecker + Rainer, ABB Group)
Series: SYSTEM 2005
Product Type: Analog Temperature Input Module (RTD)
Input Channels: 4 channels, PT100 (3‑wire)
Measurement Range: ‑50 °C to +450 °C
Power Supply: 5 VDC from backplane (max 1.2 W); 24 VDC field power (max 0.8 W)
Total Power Consumption: Max 2.0 W
Protection Class: IP20
Operating Temperature: 0 °C to +60 °C
Storage Temperature: ‑25 °C to +70 °C
Relative Humidity: 5%–95%, non‑condensing
Isolation Voltage: 2500 VAC (field to control)
Certifications: CE, UL, EAC, UKCA
Installation: Standard single slot for SYSTEM 2005 racks, DIN rail mountable
Compatible Terminal Block: 3TB170.9 (screw) / 3TB170.91 (cage clamp), sold separately

Function and Positioning

The 3AT350.6 serves as the dedicated interface between PT100 temperature sensors and B&R SYSTEM 2005 controllers. It measures resistance changes in PT100 RTDs, converts them into precise digital temperature values, and transmits data to the PLC for monitoring, logging, or closed‑loop control. With 4‑channel 3‑wire support, it compensates for lead resistance errors, delivering accurate readings in industrial settings. Positioned as a cost‑effective, space‑saving high‑precision temperature input solution, it is ideal for multi‑point thermal monitoring in process and factory automation.

Core Performance Parameters

Sensor Type: PT100 (3‑wire, RTD)
Number of Inputs: 4 independent channels
Temperature Range: ‑50 °C to +450 °C
Resolution: 16‑bit
Basic Accuracy: ±0.1 % of full scale at 25 °C
Temperature Drift: ±20 ppm/°C
Conversion Time: <300 µs per channel
Common‑Mode Rejection: >80 dB at 50/60 Hz
Input Impedance: >1 MΩ
Filter: Software‑configurable digital filter (10 Hz to 1 kHz)
Status Indicators: RUN LED (module status), CH LEDs (channel activity)
Diagnosis: Open/short‑circuit detection, out‑of‑range alarm
EMC Compliance: EN 61000‑6‑2, EN 61000‑6‑4
Configuration: Via B&R Automation Studio V4.x+

General Compatible Accessories

B&R SYSTEM 2005 backplanes and expansion racks
SYSTEM 2005 CPU modules and X2X bus‑compatible I/O
24 VDC industrial power supplies (e.g., 0PS105.1, 0PS205.1)
Shielded 3‑wire cables for PT100 sensor connection
3TB170.9 (screw) / 3TB170.91 (cage clamp) terminal blocks
B&R Automation Studio V4.x+ for configuration and diagnostics
PT100 RTD sensors (3‑wire, industrial grade)

Applicable Equipment Fields

Process Industry: Chemical, pharmaceutical, food & beverage, water treatment, pulp & paper
Factory Automation: Plastics machinery, packaging equipment, textile machines, automotive assembly
Energy: Power plants, renewable energy systems, HVAC, boiler control
Building Automation: Environmental monitoring, clean rooms, thermal management
Industrial Sites: Areas with EMI, vibration, and wide temperature fluctuations
SYSTEM 2005‑based projects requiring 4‑channel PT100 (3‑wire) high‑accuracy temperature input

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