Programmable Automation Controllers (PACs)

PACs from National Instruments are designed with the latest processing technology to solve advanced control problems in rugged, industrial environments. An NI PAC is freely programmable with NI LabVIEW, an integrated, graphical development environment.

NI CompactRIO is an advanced PAC from National Instruments with more than 60 I/O modules, over 15 chassis, and multiple communication protocol options.

Learn more about CompactRIO

View the introduction to PAC webcast

PAC Resources

Learn more about NI PAC capabilities including proportional integral derivative (PID) control, adding waveform measurements to a PAC, and connecting an NI PAC to any programmable logic controller (PLC) through OPC. The Advanced PAC Resource Kit includes white papers, tutorials, and LabVIEW code that you can implement in your next control project.

Download the resource kit | See 7 ways to boost your PLC system

NI PAC Advantages

Add Measurement Quality I/O to Your Control System

NI has been in the measurement industry for over 30 years and that experience is designed into each PAC I/O module. Analog modules are available from 12- to 24-bits and have sample rates of DC to 1 MS/s/ch. NI PACs excel at analog intensive control systems.

Freely Program an NI PAC for Custom, Advanced Control Techniques

LabVIEW, the graphical development environment for NI PACS, natively handles more advanced programming techniques that are multicore and multithread based. This helps you program control systems that would not be possible in more restrictive syntax such as 61131.

Operate in Rugged Environments (-40 °C to 70 °C, 5gRMS, 50g shock)

CompactRIO components are manufactured using aluminum, not plastic, and the chassis is a solid cast component as opposed to expansion style systems that have multiple joints. The result is a solid control system that can be securely mounted in your machine, panel, or enclosure.

Add an NI PAC to Your Existing PLC With OPC

NI hardware is designed to integrate with existing PLC systems so you can use CompactRIO for your more complex control or measurement needs and continue using standard PLCs currently deployed.

Learn More About NI PAC Features

Connect LabVIEW to Any PLC With OPC

Installing systems that work with existing equipment is important to prevent massive plant upgrades. This resource kit contains example code and tutorials that explain how to connect an NI PAC running LabVIEW to any PLC using OPC, why OPC UA matters, and more.

Introduction to the CompactRIO PAC

NI PACs are high-performance controllers that are ideal for difficult, custom control problems in rugged environments. This four-minute webcast introduces CompactRIO including the I/O modules, the real-time controller, and how it is programmed using LabVIEW.

Getting Started With Motion on NI CompactRIO

Integrating motion is an important part of advanced machine design. This six-minute webcast shows how to use NI LabVIEW NI SoftMotion, drive interface modules for CompactRIO, configure a motion axis, and create a custom motion application.

Building Distributed Monitoring and Control Systems With LabVIEW

The trend of big data and the digital factory mean control engineers need information from a variety of assets. This paper examines the benefits and fundamentals of building distributed monitoring and control systems with LabVIEW.

See the Top Industries and Applications That Use CompactRIO

The advantages of CompactRIO help reduce development costs and shorten time to market in industries such as oil and gas, electrical power, industrial machinery, transportation, and heavy equipment. These resources can help you learn more about the specific applications CompactRIO is helping to develop, as well as best practices for system design.