Modicon X80 Rack Backplane BMXXBP0800 Technical Guide for Installation and Maintenance
Product Introduction
The BMXXBP0800 is a standard 8-slot backplane from Schneider Electric's Modicon X80 range, compatible with both Modicon M340 and M580 automation platforms. Unlike basic mounting rails, this backplane contains integrated circuitry for power distribution and high-speed data communication between the CPU and I/O modules.
The unit features eight slots arranged horizontally, with Slot 0 typically reserved for the BMXCPS power supply and Slot 1 for the processor. In addition, each slot includes a high-density X-Bus connector that enables automatic geographic addressing, eliminating the need for manual DIP switch configuration on individual modules. Consequently, the BMXXBP0800 supports hot-swap capability for most I/O modules, allowing module replacement without powering down the entire rack during maintenance operations.
Core Value
Platform Versatility: The same backplane design serves both M340 and M580 platforms, simplifying spare parts inventory and enabling straightforward migration from older Quantum systems.
Operational Efficiency: Geographic addressing automatically identifies module positions, reducing commissioning time and eliminating addressing errors during installation. Furthermore, hot-swap support for I/O modules minimizes production downtime during maintenance.
Environmental Compliance: The BMXXBP0800 is a Green Premium product with a total lifecycle carbon footprint of 107 kg CO2 equivalent, packaged with recycled cardboard content of minimum 70%.
Technical Insights
Slot Configuration and Addressing: The eight slots follow a standardized allocation: Slot 0 for power supply, Slot 1 for CPU, and Slots 2–7 for I/O, communication, or special application modules. Therefore, module addressing is based on physical position (0 through 7), determined electronically by the backplane.
Power Distribution: The backplane distributes regulated power from the BMXCPS power supply across internal voltage rails, with the power supply occupying a dedicated slot rather than consuming one of the eight module positions. Additionally, power consumption for the rack itself is specified at 2.21 W.
Communication Bus: The X-Bus connector in each slot facilitates I/O data and status information exchange between the CPU and connected modules. For multi-rack configurations, the BMXXBP0800 connects via an XBE expansion module connector.
Environmental Specifications: Operating temperature range spans 0°C to 60°C, with relative humidity tolerance of 10% to 95% without condensation. As a result, the IP20 protection rating suits installation in controlled cabinets or enclosures.
Installation & Maintenance
Mounting Options: The BMXXBP0800 supports three mounting methods: panel mounting using four M4/M5/M6 screws, mounting plate installation with the same screw specifications, or DIN rail mounting via clips on 35 mm symmetrical rail. Dimensions are 372.8 mm width × 103.7 mm height × 19 mm depth, with a net weight of 0.95 kg.
Grounding Requirements: The backplane includes a dedicated protective earth (PE) grounding screw and internal copper traces to maintain all connected modules at the same ground potential, reducing electromagnetic interference. Meanwhile, mechanical keying features in each slot prevent incorrect module insertion that could cause electrical shorts.
Maintenance Considerations: While the backplane itself has no user-serviceable components, maintaining clean, dry operating conditions within specified temperature and humidity ranges supports reliable long-term operation. In addition, the BMXXBP0800H variant offers extended temperature range (-25°C to 70°C) and conformal coating for harsh environments.
Buyer's Guide FAQ
What is the difference between BMXXBP0800 and BMXXBP0800H?
The BMXXBP0800H is the hardened version featuring extended operating temperature range of -25°C to 70°C and varnish treatment for protection against harsh environmental conditions. However, the standard BMXXBP0800 operates from 0°C to 60°C.
Which Schneider Electric platforms is the BMXXBP0800 compatible with?
The BMXXBP0800 is compatible with Modicon M340 and Modicon M580 automation platforms. It accepts BMXP34 processors, BMXCPS power supplies, standard I/O modules, and specific application modules within the Modicon X80 ecosystem.
Does the power supply consume one of the eight available slots?
No. The BMXXBP0800 features a dedicated power supply slot that does not reduce the number of available I/O module positions. Therefore, all eight slots remain accessible for CPU and I/O modules.
What are the physical dimensions and weight of the BMXXBP0800?
The backplane measures 372.8 mm in width, 103.7 mm in height, and 19 mm in depth. Net product weight is 0.95 kg.
What certifications does the BMXXBP0800 hold?
The unit carries CE, UL, CSA, RCM, EAC, UKCA, and Marine certifications. In addition, it complies with EN/IEC 61131-2, EN/IEC 61010-2-201, UL 61010-2-201, and IACS E10 standards, among others.
