PXI-5421 （778697-02） National Instruments

PXI-5421  （778697-02） National Instruments programmable controller module

Product  Description：

National Instruments (NI) Programmable Controller Modules, predominantly represented within the CompactRIO (cRIO) and PXI platforms, are high-performance embedded hardware components designed for advanced control, edge processing, and industrial data acquisition. These modules combine a real-time processor, a user-programmable Field Programmable Gate Array (FPGA), and industrial I/O conditioning within a rugged chassis. They are engineered for applications that demand microsecond-level timing precision, custom hardware-timed logic, and robust computational power on the factory floor or in the laboratory.

Product Parameters

The technical profile of an NI Programmable Controller Module emphasizes high-speed determinism, timing control, and structural durability:

• Processor Architecture: Features high-performance Intel Atom or Intel Core multi-core processors running NI Linux Real-Time OS for deterministic application execution.

• FPGA Integration: Equipped with Xilinx Kintex-7 or Artix-7 FPGAs, allowing users to implement custom timing, triggering, and inline digital signal processing.

• Memory Specifications: Includes up to 4 GB of high-speed DDR3 RAM and up to 16 GB of internal non-volatile flash storage for data logging and operating system management.

• Network Connectivity: Dual Gigabit Ethernet ports supporting TSN (Time-Sensitive Networking) for precise synchronization across distributed networks, alongside USB and RS-232/RS-485 serial ports.

• Slot Capacity and Expansion: Designed to slot directly into CompactRIO or PXI chassis, allowing simultaneous management of 4, 8, or up to 18 hot-swappable C Series I/O modules.

• Environmental Protection: Built to withstand extreme conditions, featuring operational temperature ratings from -40°C to 70°C, 50 g shock resistance, and 5 g vibration resistance.

Product Advantages

NI programmable controller technology provides substantial advantages for sophisticated engineering tasks:

• Ultimate Hardware Customization: The onboard FPGA enables engineers to write custom control loops that execute at rates up to hundreds of kilohertz, bypassing the processing latency of traditional PLC operating systems.

• Precision Synchronization: Integrated Time-Sensitive Networking (TSN) allows multiple controller modules across a large facility to synchronize data and execution timing to within less than a microsecond.

• Unified Software Ecosystem: Programmed using NI LabVIEW, C/C++, or Python, allowing developers to configure real-time logic, FPGA code, and Human-Machine Interfaces (HMIs) within a single software architecture.

• Dual-Core Reliability: The isolation between the real-time processing layer and the FPGA layer ensures that even if a software-level application crashes, the hardware-level FPGA safety loops continue to run uninterrupted.

• Comprehensive I/O Ecosystem: Direct compatibility with over 150 NI C Series modules allows a single controller to interface with strain gages, microphones, high-voltage lines, and specialized communication buses.

Product Applications

These controller modules are deployed across high-tech industries requiring extreme processing speed and sensory precision:

• Advanced Robotics and Autonomous Systems: Governing the complex kinematic calculations and real-time sensor fusion required for autonomous underwater vehicles, agricultural robots, and smart manipulators.

• Grid Automation and Power Quality Analysis: Monitoring high-voltage electrical substations, calculating synchrophasor data, and executing real-time harmonic analysis to protect electrical grids.

• Automotive and Aerospace Test Cells: Controlling hardware-in-the-loop (HIL) simulation benches, dynamometers, and structural fatigue test systems that simulate real-world flight or driving conditions.

• Industrial Machine Monitoring: Collecting high-frequency vibration and acoustic data from turbines, large compressors, and manufacturing lines for real-time edge analytics and predictive maintenance.

• Medical Device Prototyping: Providing the highly deterministic control platform needed to develop and test complex medical machinery like laser surgery tools and automated ventilators.

Important Precautions

To maintain operational safety and avoid hardware degradation, users must strictly adhere to the following guidelines:

• FPGA Compilation Power: Compiling code for the onboard FPGA requires significant computer processing. Ensure that the development PC meets the recommended hardware specifications for the LabVIEW FPGA module to avoid compilation failures.

• Grounding and Shielding Isolation: The controller must be securely connected to a central chassis ground terminal. Inadequate grounding can lead to ground loop currents that corrupt sensitive analog measurements on attached I/O modules.

• Module Inserter Care: While C Series I/O modules are hot-swappable, the central programmable controller module itself should never be removed from the PXI or cRIO chassis while the main power supply is active.

• Software Stack Alignment: Ensure that the version of the NI CompactRIO driver, LabVIEW development environment, and the Real-Time operating system image on the module match precisely. Mismatched software versions can prevent the controller from booting or deploying code.

• Power Supply Regulation: Use a well-filtered, industrial-grade 9V to 30V DC power source. Unregulated power supplies that experience severe voltage drops during heavy FPGA processing loads can trigger unexpected system watchdogs and controller resets.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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