cRIO IOV Property Explorer

[viScience]

I would like to create a stand alone utility that can manage cRIO IOV properties somewhat like MAX can do for DAQmx global channels.  I have verified that such a utility is possible since the IOV properties are contained in a xml file on the cRIO file system and can be remotely downloaded modified and restored using FTP and XML parsing vi's.  For me the real question is why has NI not created such a tool.  Since the project Explorer is written in LV there must be a wealth of vi's that already provide alot of this type of functionality. 

[Andrew_B]

Hello sachsm,

This is Andrew Brown, an Applications Engineer from National Instruments. The closest tool currently available to what you have described is NI Distributed System Manager, which can monitor and force both network shared variables and I/O variables. The newest version of this program available for download is NI Distributed System Manager 2011. 

In terms of accessing I/O Variable properties, you should be able to access and modify them within LabVIEW using property nodes. Using this process, you should definitely be able to build out your application. 

Additional information on I/O Variables can be found at Recommended Practices for Using the LabVIEW I/O Variable and NI Scan Engine. 

Regards,

Andrew Brown

[viScience]

Sure, but the properties I would like to modify are the scaling parameters, which do not seem to be currently supported.  Since the cRIO variables.xml file contains all of this information it is really just a matter of creating a proper API to manipulate the xml data.  I am sure that NI has already created this since it is used within the Project Explorer itself to be able to see and modify the IOV scaling.

My goal is to create a standalone utility that can offer clients the ability to change IOV scaling without having to touch the cRIO code or even have the LV dev tools installed.