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Programatically detect excitation voltage on 9237?

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I am using four 9237 Full Bridge Modules on a crio device with FPGA interface and Labview 8.6. I am trying to figure out how to detect the excitation voltages at run time to include in the tdms file and be kept with the data. I have not been able to figure out how to do this. There doesn't appear to be any FPGA Property I/O options to set or detect this on the FPGA or RT side of things. I find this odd because I feel like I should at least be able to find out what properties and settings the FPGA has been compiled for.

 

Does anyone know how to do this?

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Accepted by topic author rex1030

Hello Rex 1030,

 

With an FPGA I/O property node, you should be able to right-click the node, and select the 9237 Module as the property reference. See below for additional detail:

 

FPGA Module Property.jpg

Excite.jpg

Excitation.jpg

It does not appear that this property may be configured to read directly from the module. If this property node were to be implemented in the FPGA VI, the FPGA Read/Write control could read the value set to the control assigned to excitation voltage, on the FPGA target. 

 

Please post any additional questions, if this process is not clear.

 

Cheers!

Patrick Corcoran
Application Engineering Specialist | Control
National Instruments

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