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AEG AS-C951-009 Industrial PLC Chassis Expansion Backplane

  • Product Introduction: AEG AS-C951-009 is a high-reliability 9-slot industrial PLC chassis expansion backplane exclusively designed for the Modicon 900 series PLC systems, engineered to provide a secure, high-speed interconnect for Modicon 900 series CPU, I/O, communication, and power supply modules in medium to large-scale industrial automation and process control applications. The backplane features a proprietary high-speed data bus, dedicated isolated power distribution rails, and rugged mechanical construction, delivering stable 10 Mbps data transfer between modules and reliable 24 V DC/5 V DC power distribution to all installed PLC components. It is built with corrosion-resistant metal framing, gold-plated contact slots, and vibration-resistant mounting hardware, with compliance with Modicon 900 series mechanical and electrical specifications. The expansion backplane enables scalable system expansion for Modicon 900 series PLCs, supporting the addition of I/O, communication, and special function modules to meet the growing requirements of complex industrial automation systems in manufacturing, process control, and municipal infrastructure applications.
  • Technical Specifications:
    • Slot Quantity: 9 standard Modicon 900 series module slots, compatible with all Modicon 900 series I/O, communication, CPU, and power modules
    • Backplane Data Bus: Proprietary Modicon 900 series high-speed bus, 10 Mbps synchronous data transfer rate, <0.5 ms module-to-module latency
    • Bus Topology: Linear daisy-chain, support for up to 4 cascaded expansion backplanes (36 total slots) per CPU
    • Power Distribution Rails: 3 isolated power rails (5 V DC logic power, 24 V DC I/O power, 24 V DC auxiliary power), individually fused
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Detailed content

    • Power Rail Current Rating: 5 V DC @ 20 A (total), 24 V DC I/O @ 30 A (total), 24 V DC auxiliary @ 15 A (total)
    • Contact Slots: Gold-plated copper alloy contact pins (5 μm plating) per slot, low contact resistance (<5 mΩ)
    • Isolation: 2500 V AC (power rails to data bus), 1500 V AC (individual slot power isolation), 500 V AC (slot-to-slot data bus isolation)
    • Cascading Interface: Dedicated backplane cascading ports (male/female), shielded twisted-pair cable connection (up to 5 m per cascade)
    • Mounting Configuration: Flange mount (panel/rack), 19-inch standard industrial rack compatible (with mounting brackets), wall-mount optional
    • Mechanical Construction: Cold-rolled steel framing (powder-coated, corrosion-resistant), reinforced plastic slot insulators (UL 94 V-0 flame retardant)
    • Vibration Resistance: 5–50 Hz, 1.5 g acceleration (IEC 60068-2-6), vibration-dampening mounting feet
    • Shock Resistance: 20 g (11 ms, IEC 60068-2-27), 50 g (1 ms, IEC 60068-2-31)
    • Operating Temperature: -25°C to +70°C, storage temperature -40°C to +85°C
    • Protection Class: IP20 (cabinet-mounted), IP30 optional with protective cover
    • Dimensions: 483 mm (W, 19-inch) × 250 mm (H) × 80 mm (D)
    • Weight: 4.8 kg
    • Compliance: IEC 61131-2, IEC 60664-1, CE, UL 508, RoHS
  • Functional Features:
    • 9-slot modular design supports the full range of Modicon 900 series PLC modules (CPU, digital/analog I/O, communication, power supply), enabling flexible system configuration for medium to large-scale industrial automation applications with varying I/O and communication requirements.
    • 10 Mbps proprietary high-speed data bus delivers ultra-low latency (<0.5 ms) module-to-module data transfer, ensuring real-time communication between the PLC CPU and distributed I/O/communication modules for critical process control and high-speed automation applications.
    • 3 isolated dedicated power distribution rails (5 V DC/24 V DC I/O/24 V DC auxiliary) eliminate cross-interference between sensitive PLC logic power and industrial field I/O power, ensuring stable power delivery to all installed modules and protecting the data bus from electrical transients.
    • Gold-plated copper alloy contact slots (5 μm plating) minimize contact resistance and prevent oxidation/corrosion, ensuring reliable electrical and data connections even after 10,000+ module plug/unplug cycles in harsh industrial environments with high humidity and dust.
    • Support for up to 4 cascaded expansion backplanes (36 total slots) per Modicon 900 series CPU enables unlimited system scalability, allowing users to expand the PLC system with additional I/O and communication modules as automation requirements grow, without replacing the core CPU module.
    • Individually fused power rails provide selective overcurrent protection for each power distribution channel, isolating power faults in individual modules or power rails without shutting down the entire PLC system, minimizing downtime and improving system reliability.
    • Shielded cascading ports and twisted-pair cable connections ensure noise-free data transfer between cascaded backplanes, even in high-noise industrial environments with heavy electrical equipment (VFDs, motors, high-voltage lines), preserving signal integrity for long-distance backplane communication.
    • Corrosion-resistant powder-coated steel framing and flame-retardant plastic slot insulators provide superior mechanical protection and electrical insulation, with resistance to impact, dust, and chemical exposure in harsh industrial environments such as chemical plants, mining sites, and washdown facilities.
    • Vibration-dampening mounting feet and rugged mechanical construction ensure the backplane remains stable and all module connections secure in high-vibration industrial environments (e.g., manufacturing machinery, conveyor systems, marine/offshore installations), preventing signal/power loss from loose contacts.
    • 19-inch standard rack compatibility enables seamless integration into industrial control racks and enclosures, simplifying the design and construction of PLC control panels for medium to large-scale automation systems and complying with global industrial cabinet design standards.
    • 2500 V AC isolation between power rails and the data bus protects the high-speed communication bus from electrical transients and surges in the industrial power distribution system, ensuring uninterrupted data transfer and preventing damage to sensitive PLC communication modules.
    • Plug-and-play module compatibility with all Modicon 900 series components enables fast and easy system configuration and module replacement, with no complex wiring or configuration required for basic module installation, reducing engineering and maintenance time.
  • Application Scenarios:
    • Large-scale factory automation for automotive and electronics manufacturing plants, supporting Modicon 900 series PLC systems with hundreds of digital/analog I/O points for controlling entire assembly lines, robotic workstations, and packaging systems with cascaded backplanes for scalable expansion.
    • Chemical and petrochemical process control for configuring Modicon 900 series PLC systems with multiple analog I/O and communication modules for monitoring and controlling large-scale reactor systems, distillation columns, and continuous process lines with high-speed data transfer between modules.
    • Power generation and distribution for building Modicon 900 series PLC systems with dedicated communication and I/O modules for controlling turbine, generator, and substation equipment, with cascaded backplanes supporting the large number of I/O points required for power plant operation.
    • Water and wastewater treatment for large-scale municipal treatment plants, with Modicon 900 series PLC systems expanded via multiple AS-C951-009 backplanes to control hundreds of pumps, valves, and sensors across multiple treatment process lines, with real-time data transfer for centralized monitoring.
    • Material handling and logistics for large-scale warehousing and distribution centers, supporting Modicon 900 series PLC systems with multiple communication modules (Ethernet, Modbus, Profibus) and digital I/O modules for controlling automated conveyor systems, stacker cranes, and palletizing machines with scalable I/O expansion.
    • Marine and offshore automation for shipboard and offshore platform control systems, with rugged Modicon 900 series PLC systems built on AS-C951-009 backplanes, providing reliable operation in salt-laden, high-vibration marine environments for controlling propulsion, navigation, and on-board process systems.
    • Mining and mineral processing for large-scale mine site automation, with cascaded AS-C951-009 backplanes supporting Modicon 900 series PLC systems with multiple I/O and communication modules for controlling underground and surface conveyor systems, crushers, and mineral processing equipment in harsh mine site conditions.
    • Building automation for large commercial and industrial complexes (airports, shopping malls, industrial parks), with Modicon 900 series PLC systems expanded via AS-C951-009 backplanes to control centralized HVAC, lighting, fire safety, and access control systems with thousands of I/O points and multiple communication networks.

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