Fixed size array has no cases of change of value

I am running LabVIEW 9.0 on Windows XP, develop for Windows and cRIO (RT and FPGA).

I created an array of fixed size (4 items) of fixed point numbers. I have put at the disposal of the control to the user on the Panel before Windows. I plan to pass the values down through the RT for the FPGA for use during the measurements, so I used the same type (fixed Points fixed-size table) in all 3 locations. I want to trigger an event whenever the value in the array (no items) Exchange (send new values to cRIO and save to disk). The event of 'Change of value' is grayed out for this control. No matter what I do, I was unable to create an array of fixed size of fixed points which will allow the event to change the value.

Is this a bug in LabVIEW, or a fundamental limitation?

Hi LabVU_Dog,

I'm not entirely sure why the event of changing the value is not available, but it may have to do with the lack of full support for arrays of fixed size outside the FPGA Module.  Herean article on this subject and the possible solutions for the use of arrays is fixed.

Tags: NI Software

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