B&R X20BC0073
Fieldbus: CAN bus Automatic firmware update via the fieldbus Integrated I/O access in B&R Automation Studio Integrated terminating resistor The bus controller makes it possible to connect X2X Link I/O nodes to CAN I/O. CAN I/O is a transfer protocol based on standard CAN bus that is fully integrated in the B&R system. Up to 43 logic I/O modules can be connected to the bus controller. Up to 16 of them can be analog modules. With multifunction modules, the bus controller supports only the default function model in the event of automatic configuration by the bus controller (see the respective module description).
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
| Bus controller | CAN I/O slave |
General information
| Diagnostics / Module status | Yes, using LED status indicator and software |
| Diagnostics / Bus function | Yes, using LED status indicator |
| Diagnostics / Data transfer | Yes, using LED status indicator |
| Diagnostics / Terminating resistor | Yes, using LED status indicator |
| Power consumption / Bus | 1.5 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 |
| Certifications / KC | Yes |
| B&R ID code | 0x1F1D |
| Status indicators | Module status, bus function, data transfer, terminating resistor |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Interfaces
| Fieldbus | CAN I/O slave |
| Execution | 5-pin male multipoint connector |
| Max. distance | 1000 m |
| Transfer rate | Max. 1 Mbit/s |
| Default transfer rate | Automatic transfer rate detection or fixed setting |
| X2X Link cycle time | Permanently set to 1 ms |
| Synchronization between bus systems possible | No |
| Terminating resistor | Integrated in module |
Electrical properties
| Electrical isolation | CAN I/O isolated from I/O CAN I/O not isolated from bus |
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 | 5 to 95%, non-condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Note | Order 1x terminal block TB2105 separately. Order 1x terminal block X20TB12 separately. Order 1x power supply module X20PS9400 or X20PS9402 separately. Order 1x bus base X20BB80 separately. |
| Pitch | 37.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
Certificates
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.