IAC

B&R X20cAT4222

4 inputs for resistance temperature measurement For PT100 and PT1000 Configurable sensor type per channel Direct resistance measurement Configurable 2- or 3- wire connections per module Configurable filter time The module is equipped with 4 inputs for PT100/PT1000 resistance temperature measurement.

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Technical specifications

Short description
I/O module4 inputs for Pt100 or Pt1000 resistance temperature measurement
General information
Diagnostics / Module run/errorYes, using LED status indicator and software
Diagnostics / InputsYes, using LED status indicator and software
Power consumption / Bus0.01 W
Power consumption / Internal I/O1.1 W
Certifications / CEYes
Certifications / UKCAYes
Certifications / CRA (Cyber Resilience Act)In preparation
Certifications / ATEXZone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X
Certifications / ULcULus E115267 Industrial control equipment
Certifications / HazLoccCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5
Certifications / DNVTemperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck)
Certifications / LRENV1
Certifications / KRYes
Certifications / ABSYes
Certifications / BVEC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck
B&R ID code0xE215
Status indicatorsI/O function per channel, operating state, module status
Additional power dissipation caused by actuators (resistive) [W]-
Resistance measurement temperature inputs
Conversion time / 1 channel20 ms with 50 Hz filter
Conversion time / 2 - 4 channels40 ms per channel with 50 Hz filter
Sensor / Sensor typeConfigurable per channel
Sensor / Pt100-200 to 850°C
Sensor / Pt1000-200 to 850°C
Max. error at 25°C / Gain±0.037%
Max. error at 25°C / Offset±0.0015%
Temperature sensor resolution / Pt1001 LSB = 0.1°C
Temperature sensor resolution / Pt10001 LSB = 0.1°C
Resistance measurement resolution / G = 10.1 Ω
Resistance measurement resolution / G = 20.05 Ω
Common-mode rejection / 50 Hz>80 dB
Common-mode rejection / DC>95 dB
Standardized range of values for resistance measurement / G = 10.1 to 4500 Ω
Standardized range of values for resistance measurement / G = 20.05 to 2250 Ω
Temperature sensor normalization / Pt100-200.0 to 850.0°C
Temperature sensor normalization / Pt1000-200.0 to 850.0°C
Temperature measurement monitoring / Range undershoot0x8001
Temperature measurement monitoring / Range overshoot0x7FFF
Temperature measurement monitoring / Open circuit0x7FFF
Temperature measurement monitoring / General fault0x8000
Temperature measurement monitoring / Open inputs0x7FFF
Resistance measurement monitoring / Range overshoot0xFFFF
Resistance measurement monitoring / Open circuit0xFFFF
Resistance measurement monitoring / General fault0xFFFF
Resistance measurement monitoring / Open inputs0xFFFF
InputResistance measurement with constant current supply for 2- or 3-wire connections
Digital converter resolution16-bit
Filter timeConfigurable between 1 ms and 66.7 ms
Conversion procedureSigma-delta
Output formatINT or UINT for resistance measurement
Resistance measurement range0.1 to 4500 Ω / 0.05 to 2250 Ω
Input filterFirst-order low-pass filter / cutoff frequency 500 Hz
Sensor standardEN 60751
Common-mode range>0.7 V
Insulation voltage between channel and bus500 Veff
Linearization methodInternal
Measuring current250 µA ±1.25%
Reference4530 Ω ±0.1%
Permissible input signalShort-term max. ±30 V
Max. gain drift±0.004%/°C
Max. offset drift±0.00015%/°C
Nonlinearity<0.001%
Crosstalk between channels<-93 dB
Electrical properties
Electrical isolationChannel isolated from bus Channel not isolated from channel
Operating conditions
Mounting orientation / HorizontalYes
Mounting orientation / VerticalYes
Installation elevation above sea level / 0 to 2000 mNo limitation
Installation elevation above sea level / >2000 mReduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529IP20
Ambient conditions
Temperature / Operation / Horizontal mounting orientation-25 to 60°C
Temperature / Operation / Vertical mounting orientation-25 to 50°C
Temperature / Derating-
Temperature / Starting temperatureYes, -40°C
Temperature / Storage-40 to 85°C
Temperature / Transport-40 to 85°C
Relative humidity / OperationUp to 100%, condensing
Relative humidity / Storage5 to 95%, non-condensing
Relative humidity / Transport5 to 95%, non-condensing
Mechanical properties
NoteOrder 1x terminal block X20TB12 separately. Order 1x bus module X20cBM11 separately.
Pitch12.5 ⁺⁰.² mm

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.