B&R X20BC0087-10
Fieldbus: Modbus/TCP, Modbus/UDP I/O configuration via the fieldbus DHCP-capable Bootp-capable Integrated double switch for efficient cabling Configurable I/O cycle (0.5 to 4 ms) Response time: <1 to 8 ms (depending on the load on the integrated switch) Validity check for command sequences before execution Producer mode Established in 1979, the Modbus protocol has approved the use of Ethernet with both Modbus TCP and Modbus/UDP. Today, Modbus TCP is an open Internet draft standard introduced by Schneider Automation to the Internet Engineering Task Force (IETF), the organization responsible for Internet standardization. The Modbus services and object model have been preserved since the original version and left unchanged for use with the TCP/IP transmission medium. Modbus/UDP differs from Modbus TCP in that it uses connectionless communication via UDP/IP. The advantages of faster and easier communication with UDP/IP also brings with it the disadvantage of requiring error detection and correction in the application layer. This bus controller makes it possible to connect X2X Link I/O nodes to Modbus via Ethernet. The bus controller can be operated on B&R controllers through the use of Automation Studio or on third-party systems with Modbus TCP or -UDP master functionality. 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). All other function models are supported when configured accordingly in Automation Studio V4.3 or later. Automation Studio kann kostenlos von der B&R Webseite www.br-automation.com heruntergeladen werden. Die Evaluierungslizenz darf unentgeltlich zur Erstellung vollständiger Konfigurationen der Feldbus Bus Controller benützt werden.
Lifecycle & replacement
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Technical specifications
Short description
| Bus controller | Modbus TCP/UDP slave |
General information
| Diagnostics / Module status | Yes, using LED status indicator and software |
| Diagnostics / Bus function | Yes, using LED status indicator and software |
| Power consumption / Bus | 2 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| 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 | 0xEA9F |
| Status indicators | Module status, bus function |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Interfaces
| Transfer / Physical layer | 10BASE-T/100BASE-TX |
| Transfer / Half-duplex | Yes |
| Transfer / Full-duplex | Yes |
| Transfer / Autonegotiation | Yes |
| Transfer / Auto-MDI/MDIX | Yes |
| Min. cycle time / Fieldbus | 1 ms |
| Min. cycle time / X2X Link | 500 μs |
| Fieldbus | Modbus TCP/UDP slave |
| Variant | 2x shielded RJ45 (switch) |
| Line length | Max. 100 m between 2 stations (segment length) |
| Transfer rate | 10/100 Mbit/s |
| Synchronization between bus systems possible | No |
Electrical properties
| Electrical isolation | Modbus isolated from bus and I/O |
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 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
Get a quote for a replacement
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.