How Do I Read Registers Values From My CompactRIO?

Updated Mar 16, 2018

Reported In

Hardware

  • CompactRIO Controller

Software

  • LabVIEW
  • LabVIEW FPGA Module
  • LabVIEW Real-Time Module

Driver

  • NI CompactRIO

Issue Details

I'm planning to use an HMI to display data gathered by my cRIO. How do I access the register values to display them on the HMI I plan to use?

Solution

There are numerous ways to accomplish this task most of them are covered in this document

In general, the CompactRIO platform does not have "registers" that are regularly updated. The readable and writeable I/O of the system is defined by the C-Series Modules you have in your cRIO chassis and how your LabVIEW Real-Time application accesses and shares that I/O.

Your application can write values to your own HMI created in LabVIEW or write values to your third party systems using one of the compatible industrial protocols
 

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