B&R X20BM11 – X20 System Bus Module | Backplane Expansion Interface
Engineering Background
The B&R X20 system is one of the most widely deployed modular PLC platforms in precision manufacturing, packaging, and process automation. The X20BM11 is the foundational bus module that physically and electrically interconnects X20 I/O modules on the backplane rail, enabling high-speed, deterministic data exchange across the X20 node. Without a correctly specified bus module, the entire I/O segment cannot function — making the X20BM11 a mission-critical component in any X20-based control architecture.
Product Positioning
Konmask.com supplies the X20BM11 as a verified OEM component sourced through established industrial distribution channels. This module is stocked to support both planned system expansions and urgent replacement scenarios, with traceability documentation available upon request for quality-sensitive procurement environments.
Complete Technical Specifications
| Part Number | X20BM11 |
| Manufacturer | B&R Industrial Automation GmbH |
| Product Family | X20 System |
| Module Type | Bus Module (Backplane Connector) |
| Function | Electrically and mechanically connects X20 I/O modules on the DIN rail segment |
| Bus Interface | X2X Link (B&R proprietary high-speed backplane bus) |
| Mounting | DIN rail (35 mm), snap-fit with adjacent X20 modules |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Relative Humidity | 5 % to 95 %, non-condensing |
| Protection Class | IP20 |
| Dimensions (W × H × D) | 12.5 mm × 99.9 mm × 85.5 mm (approx.) |
| Weight | approx. 20 g |
| Certifications | CE, UL, cUL |
| Compatible CPU / Bus Controllers | All X20 CPU and bus controller modules (X20CP, X20BC series) |
| Compatible I/O Modules | All standard X20 I/O modules |
| Power Supply Pass-through | Internal bus power distributed via backplane; no external wiring required |
Proven Application Environments
- Discrete Manufacturing – Assembly lines, robotic cells, and CNC machine tool integration requiring deterministic I/O response
- Packaging Machinery – High-cycle-rate packaging lines where backplane integrity directly impacts throughput
- Food & Beverage Processing – Washdown-adjacent control panels with IP20 enclosure requirements
- Pharmaceutical & Life Sciences – Validated automation environments requiring full OEM traceability
- Energy & Utilities – SCADA-integrated substations and distributed control nodes
- Material Handling & Logistics – Conveyor and sortation systems with distributed X20 I/O segments
Engineering Advantages
- Zero-wiring backplane architecture – X2X Link bus power and data pass through the module connector, eliminating inter-module cabling and reducing panel wiring time
- Hot-swap compatible design – Supports module replacement without full system shutdown when used with compatible X20 CPU configurations
- Compact 12.5 mm pitch – Maximises I/O density per DIN rail segment in space-constrained control cabinets
- Deterministic X2X Link communication – Sub-millisecond cycle times ensure real-time I/O synchronisation across the node
- Uniform mechanical interface – Identical form factor across the X20 range simplifies spares management and reduces engineering overhead
System Architecture & Signal Flow
In an X20 node, the X20BM11 sits between each I/O module and the DIN rail, forming the physical backbone of the segment. The X2X Link protocol transmits cyclic process data and acyclic parameter data simultaneously across the backplane at up to 100 Mbit/s. The bus module passes both the X2X Link data lines and the internal 24 V DC bus supply through its connector block, so each I/O module receives power and communication from a single mechanical interface. The CPU or bus controller (e.g., X20BC0083) acts as the X2X Link master, polling each slave I/O module in a deterministic cycle defined by the Automation Studio project configuration.
Sourcing & Quality Verification
- OEM Origin – All X20BM11 units supplied by Konmask are sourced from authorised B&R distribution channels or verified surplus stock with full label and date-code inspection
- Incoming Inspection – Each unit undergoes visual inspection for connector integrity, housing condition, and label authenticity before dispatch
- Traceability Documentation – Certificate of conformity, date code records, and sourcing documentation available upon request for regulated procurement environments
- Packaging – Shipped in anti-static packaging with protective foam insert; original B&R packaging retained where available
- Warranty – 12-month warranty against manufacturing defects; DOA replacement within 7 business days
Procurement Process
- Submit Inquiry – Email [email protected] or call +0086 19859288691 with your required quantity and delivery timeline
- Quotation – Receive a formal quotation with unit price, lead time, and shipping options within 1 business day
- Order Confirmation – Confirm purchase order; payment via T/T, PayPal, or agreed terms
- Quality Check & Dispatch – Units inspected, packed, and dispatched with tracking within 1–3 business days of payment clearance
- Documentation – Commercial invoice, packing list, and optional CoC issued with every shipment
Technical FAQ
Q: Can the X20BM11 be used with all X20 I/O modules?
A: Yes. The X20BM11 is the standard bus module for the entire X20 I/O range and is mechanically and electrically compatible with all standard X20 modules.
Q: Is the X20BM11 the same as the X20BM01?
A: No. The X20BM01 is a bus module with an integrated power supply terminal, while the X20BM11 is a standard pass-through bus module without a separate power feed terminal. Verify your segment power architecture before ordering.
Q: Do I need one X20BM11 per I/O module?
A: Yes. Each X20 I/O module requires its own bus module. The bus module is not shared between modules.
Q: Can I replace the X20BM11 while the system is running?
A: Hot-swap capability depends on the CPU and Automation Studio project configuration. Consult your B&R system documentation before attempting live replacement.
Q: What is the lead time for stock orders?
A: In-stock units ship within 1–3 business days. For larger quantities or special requirements, contact us for a confirmed lead time.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
