B&R X20cDC2190
Ultrasonic transducer module Path measurement (resolution 10 µm) Speed measurement (resolution 100 µm/s) 1, 2, 3 and 4 magnetic rod measurements possible DPI/IP protocol supported This module can be used to determine paths and to calculate speeds at the same time. The ultrasonic transducer rods are connected directly to the RS422 interface. Communication to the transducer rod takes place using start/stop signals. With the DPI/IP protocol, it is also possible, for example, to read operational properties directly from the transducer. During service (when a transducer is being exchanged) the machine can be started again quickly without additional configuration work. The module is designed for connecting 2 transducer rods with a total of up to 4 paths. That means, for example, that 2 ultrasonic transducers with 2 magnets each or one with 4 magnets can be used. The combination 3/1 is also possible. The module provides 24 VDC as an external supply for the sensor.
Lifecycle & replacement
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
Short description
| I/O module | Ultrasonic path measurement module, 2 path measurement rods, 4 path recorders, speed measurement |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Power consumption / Bus | 0.01 W |
| Power consumption / Internal I/O | 1.1 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / ATEX | Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X |
| Certifications / UL | cULus E115267 Industrial control equipment |
| Certifications / HazLoc | cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| B&R ID code | 0xEE9D |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Channels for path and speed measurements
| Encoder power supply / Voltage | 24 VDC, module-internal, max. 150 mA |
| Encoder power supply / Monitoring | Configurable overvoltage/undervoltage monitoring (±10%, ±15%, ±20%, ±25%) |
| Encoder power supply / Short-circuit proof | Rev. D0 and later |
| Inputs / Path measurement | Resolution = 0.01 mm, measurement range = ±5.2 m |
| Inputs / Speed measurement | Resolution = 0.1 mm/s, measurement range = ±3.2 m/s |
| Inputs / Accuracy | ±50 ppm ±5 ppm/year |
| Inputs / Short-circuit protection | No |
| Quantity | 2 |
| Supported encoder types | Start/Stop interface EP start/stop interface DPI/IP interface |
| Input and output level | RS422 differential level |
| Multi-magnet measurement | Yes, in combination per rod, max. 4 magnets total |
| Outputs | 1.6 µs durational initialization pulse |
Electrical properties
| Electrical isolation | Channel isolated from bus Channel not isolated from channel |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level / 0 to 2000 m | No limitation |
| Installation elevation above sea level / >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | - |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | Up to 100%, condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Note | Order 1x terminal block X20TB12 separately. Order 1x bus module X20cBM11 separately. |
| Pitch | 12.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.