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Configuring a NI6509 in MAX

I am configuring a NI6509 and not sure how to remove a latching problem on the input.  Power up state is set to Tristate which I thougt was correct.  However, in CVI when i monitor an input that is High I recieve a correct High response.  When i make that input Low  and monitor I recieve an incorrect High response.  If I then reset the card in MAX and run the function I recieve the correct Low response.

Is there any way to stop this latching effect in MAX?

 

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The test panel works in MAX, so it must be the CVI environment set up ..may be mx version..not sure

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The driver that I was using worked within cvi 8 and cvi 2010.

Currently, In order to for the driver to work under CVI2012 I have had to include DAQmxResetDevice ("Dev"); to reset the NI6509 before an input change can be read.  Is there a change in CVI2012 that requires this?

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Hi there,

Are you still experiencing the problem?

 

Are you using a PCI or PXI NI 6509?

What version are your drivers? 

The latest I can find are: 
https://www.ni.com/en-us/support/model.pci-6509.html

https://www.ni.com/en-us/support/model.pxi-6509.html

 

Is tristate what you want? This means the output will have High, Low and Float states. 

 

I hope this helps.

Tim, CLD, CTD
National Instruments (UK & Ireland)
________________________________________________
"No problem is insoluble in all conceivable circumstances"
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