B&R X67BCJ321 – Bus controller, modbus TCP/UDP slave
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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 | 195 kg |
| Datasheet | Manufacturer datasheet ↗ |
Shipping & availability
When can X67BCJ321 be shipped?
X67BCJ321 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 X67BCJ321 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 X67BCJ321 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 X67BCJ321, subject to availability and destination.
• Fieldbus: Modbus/TCP , Modbus/UDP
• I/O configuration via the fieldbus
• DHCP-capable
• Response time: <1 ms
• Check validity of command sequences before execution
• 8 digital channels, configurable as inputs or outputs
• Integrated connection to local expansions via X2X Link for 250 additional modules
• Configurable I/O cycle (0.5 to 4 ms)
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
| B&R ID code – Bus controller | 0xAD3B |
| B&R ID code – Internal I/O module | 0xADA3 |
| 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 M8, 3-pin |
| Connection type – I/O power supply | M8, 4-pin |
| Power consumption – Fieldbus | 3.5 W |
| Power consumption – Internal I/O | 2.5 W |
| Power consumption – X2X Link power supply | 4.2 W at maximum power output for connected I/O modules |
| Certifications – CE | Yes |
| Certifications – UKCA | Yes |
| 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 | 8 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 | 3 W X2X Link power supply for I/O modules |
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 " 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 | 1 ms |
| 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 | 500 μs |
| Fieldbus | Modbus TCP/UDP slave |
| Variant | M12 interface (female connector on module) |
| Line length | Max. 100 m between 2 stations (segment length) |
| Transfer rate | 10/100 Mbit/s |
| Synchronization between bus systems possible | No |
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 protection | 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 8) |
| 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 | 4 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) |
| Residual voltage | <0.3 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 Modbus 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 | 85 mm |
| Dimensions – Depth | 42 mm |
| Torque for connections – M8 | Max. 0.4 Nm |
| Torque for connections – M12 | Max. 0.6 Nm |
| Weight | 195 g |
Downloads & documentation
Official documents from B&R, downloaded directly from the manufacturer.
Data sheets & manuals
| Datasheet X67BCJ321 | PDF · 638 KB · 3.09 (03/16/2021) - EN |
| X67 System User´s Manual | PDF · 21 MB · 4.40 (08/27/2026) - EN |
CAD & dimension drawings
| 3D File DXF/STEP X67 | ZIP · 1 MB · 1.0 (05/15/2006) |
Certificates (4)
| 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) |
| TÜV 05 ATEX 7201 X | PDF · 5 MB · 1.10 (03/24/2021) |
| X20, X67 KC certificates | PDF · 7 MB · 2.00 (08/17/2026) |
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