cRIO-9031

The cRIO-9031 is a rugged 4-slot CompactRIO embedded controller from National Instruments, designed for deterministic control, industrial automation, embedded monitoring, and real-time data acquisition applications. The controller combines an Intel Atom dual-core real-time processor with a user-programmable Xilinx Kintex-7 FPGA, providing advanced embedded processing, deterministic timing, and flexible modular I/O integration within a compact industrial platform.

The NI cRIO-9031 features a 1.33 GHz Intel Atom E3825 dual-core processor, 1 GB DDR3L RAM, 4 GB onboard storage, and a Kintex-7 70T FPGA. The controller operates using the NI Linux Real-Time operating system, enabling deterministic execution for industrial control, robotics, machine automation, and embedded measurement applications.

One of the major advantages of the cRIO-9031 CompactRIO Controller is its integrated FPGA architecture. The onboard Kintex-7 70T FPGA allows engineers to implement custom timing, signal processing, industrial communication protocols, inline analysis, and hardware-level deterministic control directly in FPGA hardware. This architecture is especially suitable for high-speed industrial control systems, motion control, embedded monitoring, and hardware-in-the-loop (HIL) simulation applications.

The National Instruments cRIO-9031 supports up to 4 C Series I/O modules, enabling integration of analog input, analog output, digital I/O, CAN, LIN, motion, vibration, temperature, and industrial communication modules into a single embedded platform. The modular architecture allows engineers to build scalable control and acquisition systems for industrial and laboratory environments.

Another important feature of the cRIO-9031 is its rugged industrial design and extended temperature support. The controller is:

• Fanless
• Designed for industrial and embedded environments
• Rated for operating temperatures from -40 °C to +70 °C
• Suitable for DIN-rail, panel, desktop, and rack mounting

This rugged design makes the system suitable for factory automation, mobile systems, industrial machinery, energy monitoring, aerospace validation, and harsh-environment deployments.

The cRIO-9031 provides multiple industrial communication interfaces, including:

• 2 Gigabit Ethernet ports
• 2 USB 2.0 host ports
• 1 USB device port
• 1 RS-232 serial port
• 1 RS-485/422 serial port
• Mini DisplayPort
• SD card slot

The Mini DisplayPort allows engineers to deploy local HMIs and industrial visualization systems directly on the controller without additional industrial PCs.

The cRIO-9031 integrates with LabVIEW FPGA, LabVIEW Real-Time, and the NI automation software ecosystem. Engineers can deploy deterministic real-time applications while simultaneously running FPGA-level logic and synchronized I/O operations. Community discussions also highlight the advantages of CompactRIO systems for Linux Real-Time operation, FPGA programmability, and industrial communication flexibility.

Technical specifications describe the cRIO-9031 as supporting:

• Intel Atom E3825 CPU
• Dual-core 1.33 GHz architecture
• Kintex-7 70T FPGA
• 1 GB DDR3L RAM
• 4 GB storage
• 4-slot CompactRIO architecture
• 9 VDC to 30 VDC power input
• Industrial Ethernet, USB, serial, and DisplayPort interfaces
• NI Linux Real-Time OS support

The cRIO-9031 CompactRIO Controller installs into industrial cabinets, robotics systems, embedded automation platforms, and laboratory environments. Engineers commonly use the system for:

• Industrial automation
• Machine condition monitoring
• Embedded control
• Robotics
• Automotive testing
• Aerospace validation
• Energy systems
• Real-time data acquisition
• FPGA-based deterministic control

Overall, the NI cRIO-9031 CompactRIO Controller is a high-performance embedded industrial controller for deterministic automation and measurement systems. With its Intel Atom dual-core processor, Kintex-7 FPGA, 4-slot modular architecture, extended temperature support, NI Linux Real-Time OS, and integration with LabVIEW FPGA and C Series modules, the cRIO-9031 is well suited for advanced industrial control, embedded monitoring, and real-time automation applications.