Real-Time Measurement and Control

cancel
Showing results for 
Search instead for 
Did you mean: 

scaling a cRIO-9215 AI channel

I am inputing a vdc signal to AI0 on a compact RIO cRIO-9215 module.  I am reading a value from the cRIO that changes as I vary my input, but it is not scaled.  At 1 volt I am getting approximately 3160, at 2 volts I get approximately 6320, etc.  I can't find any properties to scale this value to indicate my voltage input.  I know that I can take my approximate value and do some math, but I was hoping to configure the actual channel.  What can I do?  Thanks.
0 Kudos
Message 1 of 4
(3,813 Views)
Hai moynihan,
                          You have to write two different codes one for fpga and other for RT. As i understand you have to use a property in the fpga part for 9215, in that select LSB weight and offset as properties. Then in the RT part you have to use a "convert to voltage vi from the all functions-select a vi menu".  From there you will get the corresponding voltage what you are feeding to the 9215 module. for more assistance go to labview examples from the help menu.
Hope this will clear your doubt.
Regards,
Labview Lovers.


0 Kudos
Message 2 of 4
(3,808 Views)
I've searched and searched but cannot find the covert to voltage.vi.  Do you have a general path?  Thanks.

0 Kudos
Message 3 of 4
(3,793 Views)
I found the .vi I needed and everything is working as I need it to.  Thanks very much.

0 Kudos
Message 4 of 4
(3,791 Views)