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AEG 15A0251-000
- Product Introduction: AEG 15A0251-000 is a high-reliability backplane module engineered as the core interconnect component for Modicon 800 series PLC chassis, providing a dedicated communication and power distribution bus for all installed I/O, communication and power modules. The backplane features a rugged PCB construction, gold-plated contact pins, isolated power/communication channels and built-in fault detection, ensuring fast, reliable data transfer and stable power distribution between the PLC CPU and all peripheral modules. It is designed for 24/7 continuous operation in harsh industrial environments, with high vibration/shock resistance and wide temperature tolerance, and is a critical replacement and upgrade component for Modicon 800 series PLC systems in factory automation, process control and building automation applications.
- Technical Specifications:
- Chassis Compatibility: Modicon 800 series 8-slot PLC chassis (primary and expansion chassis)
- Number of Module Slots: 8 standard Modicon 800 series module slots, 1 dedicated CPU slot + 7 universal I/O/communication slots
- Backplane Bus Protocol: Modicon 800 series proprietary high-speed bus, 20 Mbps data transfer rate
- Data Transfer Latency: <0.5 ms between CPU and any I/O slot, synchronous data transfer for all slots
- Power Distribution: Isolated +5 V DC (logic power) and +24 V DC (I/O power) to each slot; 5 A +5 V DC / 10 A +24 V DC per chassis total
Detailed content
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- Slot Power Protection: Independent overcurrent protection fuses for each slot (replaceable), 1 A +5 V DC / 2 A +24 V DC per slot
- Contact Pins: Gold-plated copper alloy pins (5 μm plating thickness), low contact resistance and corrosion resistance
- PCB Construction: 4-layer FR-4 glass epoxy PCB, 1.6 mm thickness, flame retardant (UL 94 V-0)
- Isolation: Power bus-to-communication bus isolation (2500 V AC), slot-to-slot communication isolation (1500 V AC)
- Fault Detection: Built-in bus communication fault detection, slot power fault detection, module disconnection detection
- Status Indicators: LED indicators (backplane power on, bus communication active, slot power/fault summary)
- Operating Temperature: -25°C to +70°C
- Storage Temperature: -40°C to +85°C
- Vibration Resistance: 5-50 Hz, 1 g acceleration (IEC 60068-2-6); shock resistance 15 g, 11 ms (IEC 60068-2-27)
- Mechanical Construction: Metal mounting frame with screw terminals for power input, PCB secured with anti-vibration mounting clips
- Dimensions: 320 mm (W) × 180 mm (H) × 25 mm (D)
- Weight: 1.2 kg
- Compliance: IEC 61131-2, IEC 60664-1 (insulation), CE, RoHS
- Functional Features:
- 20 Mbps high-speed proprietary backplane bus enables real-time synchronous data transfer between the PLC CPU and all I/O/communication modules, critical for high-speed automation and motion control applications. Gold-plated contact pins with 5 μm plating thickness minimize contact resistance, prevent oxidation and wear, and ensure stable electrical connections even after 10,000+ module plug/unplug cycles. Isolated power and communication buses eliminate electrical interference and ground loops between sensitive logic circuits and field I/O circuits, preserving signal integrity and protecting the CPU from field-side transients. Independent replaceable overcurrent fuses for each slot prevent fault propagation between modules, ensuring a single module power fault does not affect the entire backplane or other modules. 4-layer FR-4 flame-retardant PCB construction provides mechanical rigidity and excellent thermal conductivity, ensuring reliable operation in high-temperature industrial control cabinets. Built-in fault detection and summary LED status indicators provide real-time diagnostics for backplane power, bus communication and slot power faults, enabling quick identification of system issues. Isolated slot-to-slot communication prevents cross-talk between high-speed I/O modules and standard I/O modules, ensuring stable operation of mixed module configurations. The backplane supports hot-swappable module installation for all Modicon 800 series I/O modules, enabling maintenance and replacement without chassis or system shutdown. Robust anti-vibration mounting clips secure the PCB to the metal frame, preventing PCB damage and contact pin loosening in high-vibration industrial environments (e.g., manufacturing, mining). The backplane’s compact design and standard Modicon 800 series chassis mounting interface enable plug-and-play replacement, with no additional wiring or configuration required for basic operation.
- Application Scenarios:
- Replacement and upgrade of Modicon 800 series PLC chassis backplanes in factory automation systems, ensuring continued reliable operation of existing PLC systems. New Modicon 800 series PLC system installations in high-speed manufacturing automation (packaging, electronics assembly) requiring real-time backplane data transfer. Process control applications in chemical and petrochemical plants, with isolated power/communication buses for safe operation in hazardous and high-interference environments. Building automation system PLC installations, with compact design and reliable power distribution for mixed digital/analog I/O modules. Water and wastewater treatment PLC systems, with rugged construction and fault isolation for reliable operation in remote and harsh field locations. Food and beverage production PLC installations, with corrosion-resistant contact pins for long-term operation in washdown-compatible control cabinets. Automotive manufacturing PLC systems for robotic assembly lines, with high-speed backplane bus for real-time motion control and I/O data transfer. Mining and mineral processing PLC systems, with vibration-resistant construction for reliable operation in high-vibration mine site environments. Marine and offshore PLC installations, with corrosion-resistant materials for operation in salt-laden and humid environments.
