Finding out the voltage range of an input card at runtime

[MartinMcD]

Hello there,

I have a large data acquisition application. When I create a voltage input channel to add to a task I use custom scales. Now, this means that the possible Min & Max value (in scaled units) will depend on the custom scale and on the input range of the card. I need to work out what I can set these two values to at runtime.

I can call the AI.Min property once the task timing has been set up, which is no use as by then I have potentially already generated an error.

Does any body know if there is a quick way of just checking what the input range of a device/channel is at run time, so I can work out what my scaled unit min & max values need to be?

Thank you,

Martin

[asbo]

Sure, use a DAQmx Device Property Node:

[MartinMcD]

Ahh great, thank you. I was being silly and trying to find the property in a channel node.

Thanks very much, that's saved me loads of time.

[asbo]

I noticed it passes an array of ranges, but I didn't have a chance to make the correlation to channels. Did you figure it out?