Access 9236 shunt cal with scan mode?

[rex1030]

How do we enable shunt calibration with scan mode on the 9236 Quarter Bridge strain guage module 

We are very excited about the release of Labview 2009 and RIO 3.2 because now most of the cRIO modules support scan mode.

We would like to use the scan mode interface with the 9236 Quarter Bridge Strain Guage module but we need to be able to access the Shunt Calibration functionality. With the FPGA interface you acquire a set of data. Then you enable shunt calibration and acquire a second set of data. Then you compare the two to come up with a scalar using some equations. This eliminates lead resistances in your calculations, which can be less than ignorable under some circumstances.

Thanks

[speleato]

rex1030,

Shunt calibration can be accessed using a property node.  The operation will be the same, you still need to acquire two sets of data and compute the scalar.

You can obtain the necessary reference by dragging the module to the block diagram from the project.  Please see http://zone.ni.com/devzone/cda/tut/p/id/9351 for more information on programmatic configuration.

Let me know if you have any other questions.

Sebastian

[rex1030]

I dragged and dropped the module from the project explorer and got a module IO constant. How do I access the methods like shunt cal? The article isnt very clear.

[rex1030 · Accepted solution]

That was easy. I just dragged and dropped the IO constant then right mouse clicked on it and all its writeable I/O properties come up. Very cool. Way too easy to be crio programming, lol.