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X20AT4222

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B&R X20AT4222 is a four-channel Pt100 and Pt1000 resistance-temperature input module with configurable sensor type, wiring mode, and filter time for the X20 System.
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Technical specifications for X20AT4222

  • Manufacturer:
    B&R
  • Part Number:
    X20AT4222
  • Product Family:
    B&R X20 System
  • Product Type:
    Temperature Input Module
  • Stock:
    1
  • Temperature inputs:
    4 resistance-measurement inputs
  • Supported sensors:
    Pt100 and Pt1000, configurable per channel
  • Temperature range:
    -200 to 850 °C
  • Temperature resolution:
    0.1 °C
  • Connection type:
    2- or 3-wire, configurable per module
  • Direct resistance measurement:
    Supported
  • Digital converter resolution:
    16-bit
  • Filter time:
    Configurable from 1 to 66.7 ms
  • Conversion time:
    1 channel: 20 ms with 50 Hz filter; 2 to 4 channels: 40 ms per channel with 50 Hz filter
  • Resistance measurement ranges:
    0.1 to 4500 Ω or 0.05 to 2250 Ω
  • Open-circuit monitoring:
    Temperature value 0x7FFF; resistance value 0xFFFF
  • Electrical isolation:
    Channel isolated from bus; channels not isolated from one another
  • Required terminal block:
    X20TB12, ordered separately
  • Compatible bus modules:
    X20BM11 or X20BM15, ordered separately
  • Degree of protection:
    IP20
  • Operating temperature:
    -25 to 60 °C horizontal; -25 to 50 °C vertical
  • Dimensions:
    1.25 × 5.3 × 9.8 cm
  • Tariff Code:
    8538900000
  • Country of origin:
    Germany
  • Place of shipment:
    ​Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Sensor Setup Fault Values Timing Application
  • Measures four Pt100 or Pt1000 resistance-temperature channels
  • Supports direct resistance measurement with 16-bit sigma-delta conversion
  • Provides configurable filtering and explicit open-circuit fault values

X20AT4222 is a B&R temperature input module designed for X20 System I/O stations.

The module converts four resistance-temperature channels into controller values while allowing sensor type selection per channel and a module-level choice of 2- or 3-wire connection mode.

Before installation or replacement, verify the complete material number, Pt100 or Pt1000 sensor type, 2- or 3-wire mode, lead resistance, filter time, conversion timing, scaling, terminal and bus modules, and grounding.

Availability, condition, price, and shipping time for X20AT4222 are confirmed during quotation.

B&R X20AT4222 Temperature Input Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Pt100 or Pt1000 sensor type is configured independently for each channel
  • The choice between 2-wire and 3-wire connection is configured for the complete module
  • Internal linearization follows the documented EN 60751 sensor characteristic
  • An open temperature input is reported with the documented 0x7FFF value
  • An open resistance-measurement input is reported with the documented 0xFFFF value
  • Range and general-fault values must be handled explicitly in the controller application
  • Filter time is configurable from 1 to 66.7 milliseconds
  • Conversion time depends on the number of enabled channels and the selected filter
  • Unused channels and response-time requirements should be considered when configuring acquisition
  • Pt100 temperature acquisition in X20 machine-control stations
  • Pt1000 process-temperature measurement in distributed I/O systems
  • Direct resistance measurement in standard fieldbus control applications
Description
X20AT4222 is a B&R temperature input module for the X20 System distributed I/O platform.

It measures Pt100, Pt1000, or direct resistance signals with 16-bit conversion, internal linearization, configurable filtering, and open-circuit monitoring.

Before installation or replacement, confirm the complete material number, Pt100 or Pt1000 sensor type, 2- or 3-wire mode, lead resistance, filter time, conversion timing, scaling, terminal and bus modules, and grounding.
Alternative Names
X20AT4222 X20 AT 4222 X20-AT4222 B&R X20AT4222 BR X20AT4222 B&R X20 AT 4222 X20 System X20AT4222
Technical notes
X20AT4222 selects Pt100 or Pt1000 per channel but configures 2- or 3-wire mode for the module; verify sensor wiring, lead resistance, filter time, scaling, X20TB12, and X20BM11 or X20BM15 before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can B&R X20AT4222 mix Pt100 and Pt1000 sensors?
Yes. Sensor type is configurable per channel, so Pt100 and Pt1000 selections can be assigned according to the project configuration.
Can B&R X20AT4222 mix 2-wire and 3-wire sensors on one module?
The wiring mode is configured per module, not per channel. Plan the four connected sensors around one validated 2-wire or 3-wire arrangement.
How does B&R X20AT4222 indicate a broken sensor wire?
The module returns the documented open-circuit fault value. The controller program should distinguish that value from valid temperature or resistance data.
How should lead resistance be handled with B&R X20AT4222?
Use the appropriate wiring method, preferably the validated 3-wire arrangement when lead compensation is needed, and verify conductor symmetry and terminal connections.
Why does the response time of B&R X20AT4222 change with configuration?
Conversion time depends on enabled-channel count and filter time. Choose filtering that balances noise rejection and the required control response.
Which accessories are required for B&R X20AT4222?
Order one X20TB12 terminal block and a compatible X20BM11 or X20BM15 bus module separately.
What should be saved before replacing B&R X20AT4222?
Record each channel's sensor type, the module wiring mode, filter time, scaling, fault-value handling, terminal mapping, and Automation Studio hardware configuration.

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