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B&R X20BC0087

Q: What is the B&R X20BC0087?

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.

Bus controller, modbus TCP/UDP slave

MPN: X20BC0087
Category: Bus controllers

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What is the B&R X20BC0087?

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

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.

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 – CRA (Cyber Resilience Act)	Evaluation ongoing
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 – DNV	Temperature: B (0 to 55°C); Humidity: B (up to 100%); Vibration: B (4 g); EMC: B (bridge and open deck)
Certifications – CCS	Yes
Certifications – LR	ENV1
Certifications – KR	Yes
Certifications – ABS	Yes
Certifications – BV	EC33B ; Temperature: 5 - 55°C; Vibration: 4 g; EMC: Bridge and open deck
Certifications – KC	Yes
B&R ID code	0x227C
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 (note: The minimum cycle time specifies how far the bus cycle can be reduced without communication errors occurring.)
Min. cycle time – X2X Link	500 μs (note: The minimum cycle time specifies how far the bus cycle can be reduced without communication errors occurring.)
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 – Horizontal mounting orientation	-25 to 60°C
Temperature – 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 (note: Pitch is based on the width of bus base X20BB80. In addition, power supply module X20PS9400 or X20PS9402 is always required for the bus controller.)

Accessories

Required accessories (order separately)

X20PS9402	System modules for bus controllers — Supply for the bus controller, X2X Link and internal I/O supply; Low-cost supply module for small X20 system; Feed and bus controller / X2X…
X20PS9400	System modules for bus controllers — Supply for the bus controller, X2X Link and internal I/O supply; Feed and bus controller / X2X Link supply electrically isolated; Redundanc…
X20BB80	System modules for bus controllers — Bus base The following modules are used on the bus module: Base module (BC, HB, etc.); Supply module The left and right end cover plates ar…
X20TB12	Terminal blocks — Tool-free wiring with push-in technology; Simple wire release using lever; Ability to label each terminal; Plain text labeling also possibl…

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

CAD & dimension drawings

3D File STEP/DXF X20BC and X20IF ModuleZIP · 1 MB · 2.3 (09/19/2019)

Certificates (16)

X20BC0087: frequently asked questions

When can X20BC0087 be shipped?

X20BC0087 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up X20BC0087 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for X20BC0087 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for X20BC0087, subject to availability and destination.