What Is National Instruments Doing Now? A 2025 PXI and RIO Guide

What Is National Instruments Doing Now?

Let's start with the question that probably brought you here. What is National Instruments doing now? After years as a stand-alone company called National Instruments Corporation, NI is now an Emerson business. The deal closed in December 2023. The NI brand remains, and most of the product lines engineers care about are still sold and supported. If you search for older articles, you'll see the full corporate name. If you look at a current product page, the logo is simply NI.

That sounds like a corporate timeline, but it actually matters when you are buying hardware. The company's direction did not stop after the acquisition. It pushed NI closer to Emerson's automation and software portfolio. That changes how some systems are packaged, but the PXI and RIO architectures are alive.

So the practical question isn't only what is National Instruments doing now. It's which platform should you use for the problem in front of you. I deal with this question from a specific angle: I help engineers get working systems when time is not on their side. In March 2024, a customer called on a Thursday and needed a test rack working by the following Friday. Their old desktop DAQ could not handle 32 synchronized channels. We had three serious options. PXI, RIO, and a simpler CompactDAQ base. PXI won because the application needed tight timing across many channels. For another customer the same week, the right answer was CompactRIO. Different situation, different branch.

Three Paths, Not One Platform

People often want a simple ranking of National Instruments products. There isn't one. The right answer depends on three things: where the measurement happens, how many channels need synchronized timing, and what the system must do after you collect the data. Those variables lead to three common scenarios.

1. PXI path: Rack-mounted modular hardware for high-performance measurement and production test.
2. RIO path: Embedded controllers with FPGA capability for rugged, deterministic monitoring and control.
3. CompactDAQ path: Simple low-channel-count data acquisition on a bench with a PC.

If you can identify which one matches your data flow, half the work is done.

Scenario A: The PXI National Instruments Ecosystem

PXI National Instruments systems are modular measurement platforms built around a chassis, a controller, and plug-in modules. They are designed for situations where a cheap desktop DAQ is not enough. The module options are wide: analog input, analog output, digital I/O, thermocouples, strain gauges, high-speed digitizers, RF analyzers, switching, and even power supplies.

The real advantage of PXI is synchronization. A chassis contains a timing and triggering backplane that distributes clock signals between modules at hardware level. When one module measures a motor current and another module measures a vibration signal, you can compare those signals accurately because they share the same time base. That may sound like a nice feature, but it becomes essential when a validation test requires correlating many signals.

What most people don't realize is that the PXI hardware is only half the solution. The useful part is the surrounding software environment. LabVIEW has been linked with NI modules for decades. PXI also works with Python, C, and TestStand, but most example code you find will be LabVIEW. If your team doesn't have LabVIEW experience, an urgent PXI project will include a software learning curve.

That's why I often ask clients about software before I recommend PXI. But when they need 16-plus synchronized channels and a modular system they can extend later, PXI is a no-brainer.

Here is a useful mental model. Think of a product like Omron's HeartGuide, a wearable blood-pressure monitor. Inside that type of device, you have pressure sensors, a miniature pump, motion sensors, and wireless communication. The product developer may or may not use NI in every stage, but validating something like that requires pressure, current, and accelerometer data to line up on a shared timebase. That is a perfect PXI work order. HeartGuide is a part of a broader trend: devices are becoming smaller, smarter, and harder to test. PXI earns its place there.

Scenario B: National Instruments RIO for Embedded Control

Now imagine the opposite situation. You don't have a lab bench or a rack. Your measurement system has to live inside a machine, on a vehicle, or next to a motor on a factory floor. It may need to make control decisions quickly, without a PC. In that case, the National Instruments RIO family is usually the right path.

RIO stands for reconfigurable I/O. The architecture combines a real-time processor with an FPGA and modular I/O circuits. CompactRIO is the most popular implementation, and the same building blocks appear in other NI products. The processor handles communications and higher-level control. The FPGA handles fast tasks with very predictable timing. The I/O modules connect to real-world sensors and actuators.

A key difference from PXI is that RIO is designed to be embedded. It is often installed on a machine or in a vehicle, rather than sitting on a shelf in a temperature-controlled lab. It can operate without a separate computer and can send selected results to a plant network or cloud service.

If you ask what National Instruments is doing now, a large part of the answer is edge-oriented applications. RIO hardware supports condition monitoring, predictive maintenance, and closed-loop control. Those uses have grown because industrial companies want to move decision-making closer to the sensor.

The honest catch is that RIO asks more from you than a desktop DAQ does. I am not an FPGA specialist, so I won't claim the learning curve is small. What I can tell you from the integration side is that once you define the high-speed tasks, LabVIEW lets you put them into the FPGA without writing low-level VHDL code. Still, this is not a plug-and-play system for everyone.

I once recommended a CompactRIO system for a customer who wanted to monitor vibration on a large pump. The alternative PXI idea would have required them to place a computer and a rack near the pump, which made no sense in a dusty area. The RIO system collected data for weeks and only sent summary information back to their office. That approach saved time and avoided a fragile setup.

Scenario C: CompactDAQ When You Just Need a Measurement

Not every problem needs a PXI chassis or an embedded controller. If your job is to measure a few signals and log them to a computer, CompactDAQ is often the right scale. A base unit with one or two modules can handle thermocouples, voltage, current, resistance, and many other signals. You connect it to a PC, run a basic measurement program, and start reading data.

This branch is a strong fit for proof-of-concept work, quick thermal checks, or tests where you don't need extreme timing accuracy. If you are in a hurry, you can assemble a simple CompactDAQ setup in less than an hour. It also keeps the initial investment low without forcing you to buy a huge modular system.

The trap I see in this branch is overscoping. Someone buys an eight-slot chassis because they want future capacity, then uses only two slots for years. The extra chassis adds cost and occupies bench space without making the current test better. In an urgent project, buy only what the current requirement needs. You can add modules later if the workload increases.

How to Tell Which Scenario You Are In

If you are still on the fence, here is a mental shortcut that has served me well in rush jobs.

1. Count synchronized channels. If you need more than about eight to sixteen analog inputs with shared timing, go toward PXI. If you need only a few channels and can tolerate slight timing differences, CompactDAQ is enough.
2. Ask where the system will live. If it will be embedded in a machine, vehicle, or harsh industrial environment, choose RIO. If it will stay in a lab or test rack, PXI is easier to scale.
3. Ask what happens after the measurement. If you need to process signals in real time and control something, RIO gives you the deterministic backbone. If you just need to store data and examine it later, CompactDAQ is enough.
4. Don't confuse the hardware with the software. The best box in the world won't help if you don't have a test plan. In every rush project I've worked on, the delays came from wiring and software more often than from the platform.

One warning I repeat to buyers: don't pick a rugged RIO controller just because someone said plant-floor equipment is always fragile. If your controller sits in a protected cabinet with no fan filters, a less expensive system may work just as well. Match the hardware to the actual environment and speed requirement.

A 2025 Reality Check on Availability

Now a caution about lead times. Availability changes quickly, so take this as a snapshot from early 2025 rather than a promise. Most common NI PXI controllers, CompactRIO controllers, and CompactDAQ modules have reasonable lead times. Some specialized modules, especially high-speed digitizers or RF devices, can take longer.

What should you do if you are under time pressure? Verify availability before you finalize your architecture. Contact a local NI distributor or an NI channel partner. Ask which controller and I/O modules are in stock. Ask whether a different module with similar specifications can be substituted. I have seen a seemingly ordinary thermocouple module be out of stock, while a more capable PXI digitizer was available immediately. The stock situation changed the design and actually made the system more powerful.

This is also a good place to clear up a common rumor. NI is not frozen in time, and it didn't stop innovating because an industrial automation company bought the corporation. Emerson acquired NI because automated test and measurement capabilities are central to modern factories and process industries. The old National Instruments Corporation still lives in legal documents, but the commercial strategy is now about connected, software-ready test systems.

Bottom Line

So, what is National Instruments doing now? NI is part of Emerson, still building test and measurement systems, and pushing harder into edge computing and automated validation. The company is not a single product. It is an ecosystem made of PXI, RIO, CompactDAQ, and software.

The best choice for you is the one that fits your data flow, your environment, and your timeline. If you need synchronized, high-channel-count measurements in a rack, look at PXI. If you need to control and monitor equipment outside a lab, look at RIO. If you just need a quick measurement with a PC, keep it simple with CompactDAQ.

When a deadline is involved, don't let the platform selection become a second project. Define the scenario, confirm module availability, and then build the smallest capable system that solves today's problem. That approach has saved me a lot of late nights, and it will save you too.