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1. Product Overview: X20BB80 Bus Base Module
The B&R X20BB80 Bus Base Module serves as the foundational unit for building robust industrial automation systems. Designed for seamless integration with B&R’s modular PLC architecture, this bus base supports high-speed communication between connected modules while ensuring mechanical stability. Its compact design optimizes space efficiency in control cabinets, making it ideal for applications requiring scalable automation solutions. The X20BB80 is compatible with a wide range of base modules (e.g., BC, HB series) and power supply units, enabling flexible configurations for diverse industrial environments. Engineered for durability, it operates reliably in temperatures ranging from -25°C to +60°C and meets IP20 protection standards, ensuring performance in demanding conditions.
2. Core Components & Modular Flexibility
The X20BB80 system includes base modules (e.g., BC for basic control, HB for high-performance tasks) and power supply modules, which slot directly into the bus base for streamlined assembly. Base modules handle signal processing, I/O interfacing, and real-time communication, while dedicated power modules deliver stable 24V DC/AC voltage to the entire stack. This modularity allows users to mix and match components based on application needs—from simple machine control to complex multi-axis motion systems. Optional redundancy configurations enhance system reliability, and hot-swappable designs minimize downtime during maintenance. The bus base’s standardized DIN rail mounting ensures compatibility with third-party industrial enclosures.
3. Included Accessories & Installation Support
Every X20BB80 package contains left/right end cover plates to
protect exposed connectors and maintain EMI shielding integrity.
The cover plates feature tool-free snap-on installation, with
integrated cable management channels for organized wiring. A
detailed quick-start guide and CAD dimension drawings are provided
for precise cabinet layout planning. For extended configurations,
multiple bus bases can be daisy-chained using B&R’s proprietary
coupling kits (sold separately). The system complies with global
certifications including CE, UL, and RoHS, with a 5-year warranty
covering defects in materials and workmanship. Technical support
includes free access to B&R’s Automation Studio software for
configuration and diagnostics.
Attribute | Description |
Product Model | X20BB80 |
Manufacturer | B&R |
Product Type | Bus Base |
Function | Serves as a backplane for bus controller, fieldbus interface, and
bus controller power supply module. The left and right end cover
plates are included in delivery. Base module (BC, HB, etc.) and
supply module can be used on it. |
Power Consumption | Bus: 0.25 W; Internal I/O: -; Additional power dissipation caused
by actuators (resistive) (W): - |
I/O Power Supply | Nominal voltage: 24 VDC; Permissible contact load: 10 A |
Mounting Orientation | Horizontal: Yes; Vertical: Yes |
Installation Elevation | 0 - 2000 m: No limitation; > 2000 m: Reduction of ambient
temperature by 0.5 °C per 100 m |
Degree of Protection | IP20 per EN 60529 |
Ambient Temperature (Operation) | Horizontal mounting orientation: -25 to 60 °C; Vertical mounting
orientation: -25 to 50 °C; Derating: - |
Ambient Temperature (Storage) | -40 to 85 °C |
Ambient 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 Property - Pitch | 37.5 + 0.2 mm |
Certifications | CE: Yes; UKCA: Yes; ATEX Zone 2, II 3G Ex na nc IIA T5 Gc; IP 20,
Ta (see X20 user's manual); FT ZÚ 09 ATEX 0083X; UL CULUS E115267
(Industrial Control Equipment); HAZLOC CC SAUS 244665 (Process
Control Equipment for Hazardous Locations, Class I, Division 2,
Groups ABCD, T5); DNV - Temperature: B (0 - 55 °C), Humidity: B (up
to 100%), Vibration: B (4 g), EMC: B (bridge and open deck); LR ENV
1; KR: Yes; ABS: Yes; BV - EC33B Temperature: 5 - 55 °C, Vibration:
4 g, EMC: bridge and open deck; EAC: Yes; KC: Yes |