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      X20cDC2190

      Position Measurement Module
      Ships by Thursday, November 12
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      B&R X20cDC2190 is a coated X20 module for ultrasonic position transducers, supporting two measuring rods and up to four measured paths.
      • Manufacturer part number
        X20cDC2190
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        15.3cm x 8cm x 10.1cm
      • Country of Origin
        Austria

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete B&R X20cDC2190 reference, label photographs and quantity. Include the existing rod connections arrangement.

      • 1

        Confirm the offer

        Review the offered revision, condition, included items and documents against the installation requirements.

      • 2

        Arrange dispatch

        Confirm quantity, dispatch date, lead-time start and delivery details in the quotation.

      • Match the complete marking

        Match the complete B&R X20cDC2190 marking, hardware revision and selected configuration to the installed position. Check rod connections and measured paths against the installed configuration.

      • Check the offered item before ordering

        Request label and connection photographs. Have your maintenance team compare the offered X20cDC2190 with the installed equipment and applicable B&R instructions.

      Technical specifications for X20cDC2190

      • Manufacturer:
        B&R
      • Product Category:
        PLC Systems
      • Spare Part Number:
        X20cDC2190
      • Weight:
        0.66 kg
      • Tariff Code:
        8537101190
      • Rod connections:
        2
      • Measured paths:
        4 maximum
      • Interface level:
        RS422 differential
      • Protocols:
        Start/Stop, EP Start/Stop, DPI/IP
      • Position resolution:
        0.01 mm
      • Position range:
        +/-5.2 m
      • Speed resolution:
        0.1 mm/s
      • Speed range:
        +/-3.2 m/s
      • Sensor supply:
        24 V DC; 150 mA maximum
      • Initialization pulse:
        1.6 microseconds
      • Internal I/O power:
        1.1 W
      • Coated-module operating humidity:
        Up to 100%, condensing
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • B&R X20cDC2190 reads position and derived speed from magnetostrictive measuring rods through start/stop interfaces, rather than through analog voltage inputs.
      Rod connections: 2
      Measured paths: 4 maximum
      Interface level: RS422 differential
      Two transducer rods can share four magnets in arrangements such as two plus two or three plus one; one rod can also carry four magnets. The module supplies 24 V DC to the sensors and supports start/stop, EP and DPI/IP communication.

      Position resolution is 0.01 mm over a +/-5.2 m measurement range. Speed resolution is 0.1 mm/s over +/-3.2 m/s, using position values spaced 100 ms apart. RS422 differential signaling carries the start and stop information.

      Rod parameters can be uploaded with EP or DPI/IP, but rod length and ultrasonic speed are not automatically applied to the measurement configuration. Parameter transfer freezes existing position and speed values, so the application must manage validity during this interval.
      Controller platform reference: B&R Position Measurement Module. Use the applicable installation instructions.
      Original B&R technical material applicable to X20cDC2190, covering function, interfaces and operating limits. Installation topics include: connections checks, supply checks, protocols checks.
      Original manufacturer pages retain their technical context. Use the Apter Power guide with the applicable manufacturer instructions and approved installation design.
      System and supply context: The position measurement module is applied in the Rod magnets / RS422 start/stop / Position and speed / X20 controller arrangement. Select associated equipment for the actual channel or installation.

      Application scope: The technical values apply to this model in the specified installation and configuration. The examples below address the stated product function.
      Prepare B&R X20cDC2190 for its configured installation using these checks.
      Identify rods and magnet allocation

      Record which physical rod serves each input and how its magnets map to the four measurement paths.

      Verify coated hardware and revision

      Retain the full X20cDC2190 identity and the hardware revision.

      Check the 24 V sensor budget

      Add the connected rod current demands and compare them with the 150 mA maximum sensor supply.

      Restore differential signal pairs

      Reconnect start and stop pairs according to the pinout and preserve the shield connection at the bus module.

      Choose the rod protocol

      Match Start/Stop, EP or DPI/IP to the connected transducer.

      Apply rod calibration deliberately

      Read rod length and ultrasonic speed when the protocol permits it, then compare them with the approved measurement settings.

      Alternative Names

      B&R X20cDC2190

      Technical notes

      Verify coated hardware and revision: Retain the full X20cDC2190 identity and the hardware revision. The coating does not change the IP20 enclosure requirement, and sensor-supply short-circuit protection depends on revision D0 or later.

      Choose the rod protocol: Match Start/Stop, EP or DPI/IP to the connected transducer. An unsupported selected protocol can time out and revert to normal rod treatment, so verify actual communication rather than relying on the chosen setting.

      Retain rod-specific settings: Save the rod protocol, magnet allocation, length, ultrasonic speed and supply thresholds with the accepted tests. Keep these settings associated with the exact rod identity so a future sensor replacement can be evaluated accurately.

      FAQ View All FAQ

      • How can four magnets be distributed on X20cDC2190?
        The two rod connections support four magnets in total. Arrangements include two per rod, three on one and one on the other, or four on one rod.
      • Is X20cDC2190 an analog input for a 0 to 10 V position signal?
        No. It communicates through RS422-level start/stop interfaces for ultrasonic linear position sensors, including EP and DPI/IP protocols.
      • How does X20cDC2190 calculate speed?
        It calculates speed from two position values 100 ms apart, providing 0.1 mm/s resolution over a +/-3.2 m/s range.
      • Are uploaded rod length and sound velocity applied automatically by X20cDC2190?
        No. These values can be read, but the application decides whether to transfer rod length and ultrasonic speed into the corresponding measurement settings.
      • What happens to X20cDC2190 measurements during rod-parameter upload?
        Position measurement is unavailable during the upload. Existing position and speed data for the magnets are frozen and must not be mistaken for fresh measurements.
      • What supply monitoring can X20cDC2190 perform?
        Encoder overvoltage and undervoltage limits are configurable at +/-10%, +/-15%, +/-20% or +/-25%. The sensor supply is 24 V DC with 150 mA maximum current.
      • Does the coating of X20cDC2190 remove the need for a suitable enclosure?
        No. The coated module permits condensing operating humidity, but its degree of protection remains IP20 and the complete installation still needs an appropriate enclosure.
      • When does X20cDC2190 provide sensor-supply short-circuit protection?
        The sensor supply is short-circuit-proof from hardware revision D0. Confirm the actual revision rather than assuming this protection on an earlier unit.
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