ABB NDCU-33CX 3AUA0000052751
ABB NDCU-33CX 3AUA0000052751
ABB NDCU-33CX 3AUA0000052751
ABB NDCU-33CX 3AUA0000052751
ABB NDCU-33CX 3AUA0000052751

ABB NDCU-33CX 3AUA0000052751 | Network Data Control Unit

  • Brand:​ ABB
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    Model:​ NDCU-33CX (Order Code: 3AUA0000052751)
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    Product Type:​ Network Data Control Unit
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    Series:​ AC 800M
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    Core Function:​ Provides network connectivity and data exchange between AC 800M controllers and higher-level systems in System 800xA.
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    Key Specs:​ Ethernet connectivity, protocol conversion, data concentration.
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Part number: ABB NDCU-33CX 3AUA0000052751
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Description

NDCU-33CX: Product Overview
The NDCU-33CX is a Network Data Control Unit designed for ABB’s AC 800M controller system within the System 800xA platform. This advanced communication module functions as a network gateway and data concentrator, enabling seamless data exchange between AC 800M process controllers and various plant networks, including operator stations, engineering workstations, and enterprise-level systems. Installed in an AC 800M controller rack, it serves as the primary interface for system-wide communication, handling protocol conversion, data routing, and network management functions.
The unit operates as a critical component in the distributed control system architecture, facilitating real-time data exchange between the process controllers and the operator interface while providing connectivity to other systems such as historians, asset management tools, and manufacturing execution systems (MES). It supports multiple industrial protocols and provides firewall functionality to ensure network security. The NDCU-33CX is designed for high availability applications with redundant configuration options and hot-swap capability, ensuring continuous operation even during maintenance or component failure.

ABB NDCU-33CX 3AUA0000052751

ABB NDCU-33CX 3AUA0000052751

NDCU-33CX: Technical Specifications
  • ••
    Model Number:​ NDCU-33CX
  • ••
    Order Number:​ 3AUA0000052751
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    Manufacturer:​ ABB
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    Product Type:​ Network Data Control Unit
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    Compatible System:​ System 800xA
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    Network Interfaces:​ Multiple Ethernet ports (10/100/1000 Mbps)
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    Protocol Support:​ OPC UA, Modbus TCP, IEC 61850, PROFINET
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    Processor:​ High-performance multicore processor
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    Memory:​ DDR3 RAM with flash storage
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    Redundancy:​ Supports redundant configuration
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    Hot-Swap Capable:​ Yes
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    Power Supply:​ 24V DC via controller backplane
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    Operating Temperature:​ 0°C to 60°C
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    Certifications:​ UL, CE, cULus
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    Security Features:​ Integrated firewall, user authentication

    ABB NDCU-33CX 3AUA0000052751

    ABB NDCU-33CX 3AUA0000052751

Core Features & Customer Value
The NDCU-33CX’s advanced networking capabilities provide a unified communication platform that simplifies system integration and reduces engineering effort. For system architects, this means a single device can handle multiple communication tasks that previously required separate gateways and interfaces. The support for modern protocols like OPC UA ensures future-proof connectivity while maintaining backward compatibility with legacy systems through protocol conversion functionality.
The unit’s high availability features, including redundant configuration and hot-swap capability, ensure continuous operation critical for process industries where network downtime can lead to production losses. The integrated security features protect against unauthorized access and cyber threats, which is increasingly important in modern industrial networks. For maintenance teams, the comprehensive diagnostic capabilities and web-based interface simplify troubleshooting and reduce mean time to repair.
Typical Applications
In large-scale process plants, the NDCU-33CX serves as the central communication hub between multiple AC 800M controllers and the operator stations. It aggregates process data from various units and makes it available to operators, historians, and maintenance systems through standardized interfaces, enabling comprehensive plant monitoring and optimization.
In power generation facilities, the unit facilitates data exchange between turbine control systems, balance-of-plant controllers, and the central operator interface. The support for industry-specific protocols like IEC 61850 makes it suitable for smart grid applications and integration with substation automation systems.

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