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B&R X67BCG321.L12 – Bus controller, etherCAT

Name: B&R X67BCG321.L12 – Bus controller, etherCAT
Brand: B&R
SKU: X67BCG321.L12

MPN: X67BCG321.L12 · Brand: B&R

Price on request

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Bus controller modules
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Weight	370 kg
Datasheet	Manufacturer datasheet ↗

Shipping & availability

When can X67BCG321.L12 be shipped?

X67BCG321.L12 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 X67BCG321.L12 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 X67BCG321.L12 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 X67BCG321.L12, subject to availability and destination.

• Fieldbus: EtherCAT

• 16 digital channels, configurable as inputs or outputs

• Auto-configuration of I/O modules

• I/O configuration and firmware update via the fieldbus (FoE)

• Integrated connection to local expansion via X2X Link for 250 additional modules

• Full support of the modular slice concept via CoE (CANopen over EtherCAT)

• Configurable I/O cycle (0.2 to 4 ms)

• Synchronization between the fieldbus and X2X Link

EtherCAT is an Ethernet-based fieldbus developed by Beckhoff. This protocol is suitable for both hard and soft real-time requirements in automation technology. In addition to a ring structure, which becomes logically necessary because of the summation frame telegram used, the EtherCAT technology also physically supports topologies such as line, tree, star (limited) and combinations of these topologies. B&R's X20BC80G3 (expandable bus controller module) and X20HB88G0 (standalone junction base module) are available for implementing these topologies.

EtherCAT slave devices take the data designated for them from a telegram as it is passing through the device. Input data is also added to the telegram as it is passing through. The bus controller allows X2X Link I/O modules to be coupled to EtherCAT and operated on any EtherCAT master system. A transition between IP20 and IP67 protection outside of the control cabinet is possible by arranging X20, X67 or XV modules one after the other as needed at distances up to 100 m.

Master systems without FoE (File access over EtherCAT) support require an appropriate configuration tool to transfer the configuration (optional).

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

EtherCAT

General information

B&R ID code – Bus controller	0xACF8
B&R ID code – Internal I/O module	0xB402
Diagnostics – Outputs	Yes, using LED status indicator and software
Diagnostics – I/O power supply	Yes, using LED status indicator and software
Connection type – Fieldbus	M12, D-coded
Connection type – X2X Link	M12, B-coded
Connection type – Inputs/Outputs	8x M12, A-coded
Connection type – I/O power supply	M8, 4-pin
Power consumption – Fieldbus	2.5 W
Power consumption – Internal I/O	0.5 W
Power consumption – X2X Link power supply	15% of the power output for X2X Link
Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	In preparation
Certifications – ATEX	Zone 2, II 3G Ex nA IIA T5 Gc; IP67, Ta = 0 - Max. 60°C; TÜV 05 ATEX 7201X
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
Inputs/Outputs	16 digital channels, configurable as inputs or outputs using Automation Studio or data point, inputs with additional functions
Insulation voltage between channel and bus	500 V eff
Nominal voltage	24 VDC
Sensor/Actuator power supply	0.5 A summation current
Status indicators	I/O function per channel, supply voltage, bus function
Power output	15 W X2X Link power supply for I/O modules
Additional power dissipation caused by actuators (resistive) [W]	0.6

Interfaces

Transfer – Physical layer	100BASE-TX
Transfer – Half-duplex	Yes
Transfer – Full-duplex	Yes
Transfer – Autonegotiation	Yes
Transfer – Auto-MDI/MDIX	Yes
Min. cycle time " data-placement="top" data-html="true" data-container="body" data-content="The minimum cycle time specifies how far the bus cycle can be reduced without communication errors occurring."> – Fieldbus	200 μs
Min. cycle time " data-placement="top" data-html="true" data-container="body" data-content="The minimum cycle time specifies how far the bus cycle can be reduced without communication errors occurring."> – X2X Link	200 μs
Fieldbus	EtherCAT slave
Variant	M12 interface (female) 2x on the module
Line length	Max. 100 m between 2 stations (segment length)
Transfer rate	100 Mbit/s
Hub propagation delay	750 ns
Synchronization between bus systems possible	Yes

I/O power supply

Power consumption – Sensor/Actuator power supply	Max. 12 W " data-placement="top" data-html="true" data-container="body" data-content="The power consumption of the sensors and actuators connected to the module is not permitted to exceed 12 W.">
Nominal voltage	24 VDC
Voltage range	18 to 30 VDC
Integrated protective function	Reverse polarity protection

Sensor/Actuator power supply

Voltage	I/O power supply minus voltage drop for short-circuit protection
Voltage drop for short-circuit protection at 0.5 A	Max. 2 VDC
Summation current	Max. 0.5 A
Short-circuit proof	Yes

Digital inputs

Input filter – Hardware	≤10 μs (channels 1 to 4) / ≤70 µs (channels 5 to 16)
Input filter – Software	Default 0 ms, configurable between 0 and 25 ms in 0.2 ms intervals
Switching threshold – Low	<5 VDC
Switching threshold – High	>15 VDC
Input characteristics per EN 61131-2	Type 1
Input voltage	18 to 30 VDC
Input current at 24 VDC	Typ. 4 mA
Input circuit	Sink
Input resistance	Typ. 6 kΩ
Additional functions	50 kHz event counting, gate measurement

Event counters

Quantity	2
Signal form	Square wave pulse
Evaluation	Each negative edge, cyclic counter
Input frequency	Max. 50 kHz
Counter 1	Input 1
Counter 2	Input 3
Counter frequency	Max. 50 kHz
Counter size	16-bit

Gate time measurement

Counter frequency – Internal	48 MHz, 3 MHz, 187.5 kHz
Quantity	1
Signal form	Square wave pulse
Evaluation	Positive edge - Negative edge
Counter size	16-bit
Length of pause between pulses	≥100 µs
Pulse length	≥20 µs
Supported inputs	Input 2 or input 4

Digital outputs

Switching delay – 0 → 1	<400 µs
Switching delay – 1 → 0	<400 µs
Switching frequency – Resistive load	Max. 100 Hz
Switching frequency – Inductive load	See section "Switching inductive loads".
Variant	Current-sourcing FET
Switching voltage	I/O power supply minus residual voltage
Nominal output current	0.5 A
Total nominal current	8 A
Output circuit	Source
Output protection	Thermal shutdown in the event of overcurrent or short circuit, integrated protection for switching inductive loads, reverse polarity protection of the output power supply
Diagnostic status	Output monitoring with 10 ms delay
Leakage current when the output is switched off	5 µA
Switching on after overload shutdown	Approx. 10 ms (depends on the module temperature)
R DS(on)	150 mΩ
Residual voltage	<0.15 V at 0.5 A nominal current
Peak short-circuit current	<12 A
Braking voltage when switching off inductive loads	50 VDC

Electrical properties

Electrical isolation

Bus isolated from EtherCAT and channel ; Channel not isolated from channel

Operating conditions

Mounting orientation – Any	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	IP67

Ambient conditions

Temperature – Operation	-25 to 60°C
Temperature – Derating	-
Temperature – Storage	-40 to 85°C
Temperature – Transport	-40 to 85°C

Mechanical properties

Dimensions – Width	53 mm
Dimensions – Height	155 mm
Dimensions – Depth	42 mm
Torque for connections – M8	Max. 0.4 Nm
Torque for connections – M12	Max. 0.6 Nm
Weight	370 g

Downloads & documentation

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

Data sheets & manuals

Datasheet X67BCG321.L12	PDF · 2 MB · 2.25 (12/01/2025) - EN
EtherCAT Bus Controller User's Manual	PDF · 5 MB · 2.20 (08/22/2025) - EN
X67 System User´s Manual	PDF · 21 MB · 4.40 (08/27/2026) - EN

CAD & dimension drawings

STEP File X67BCx321.L12

ZIP · 1 MB · 1.00 (04/22/2015)

Certificates (7)

2226379 CSA Certificate of Compliance X20 X67	PDF · 205 KB · 2026_09 (09/21/2026)
E115267 UL CoC X67	PDF · 345 KB · 2026_01 (01/29/2026)
EU Declaration ATEX X67	PDF · 191 KB · 2021-04 (07/02/2021)
EU Declaration PLC X67	PDF · 674 KB · 2024-02 (02/02/2024)
TÜV 05 ATEX 7201 X	PDF · 5 MB · 1.10 (03/24/2021)
UK Declaration PLC X67	PDF · 469 KB · 2024-02 (02/02/2024)
X20, X67 KC certificates	PDF · 7 MB · 2.00 (08/17/2026)