Two counters can not be measured in one task at the same time

[reita1014]

Hi all

I use the DAQExpress ver.3.2.

Two counters can not be measured in one task at the same time.

An error is displayed saying "multiple counters can not be used in the same task of input operation"

When I try to use LabVIEW (VI), I can not display the linear position or the angular position, and "This node is not supported by DAQExpress" is displayed.

Is there any better way?

Thank you in advance

[Y.Ueno（退職） · Accepted solution]

Hi reita1014,

Counter input can't make multiple channels in the single task. So you need to create the tasks for each the counter channels.

If you want to use multiple counter input simultaneously, I recommend to use DAQmx API like below examples (not DAQmx Express VI).

• Multiple Counters with Different Frequencies
• Software Analog Trigger with Pre-Trigger Samples Using LabVIEW with DAQmx

[reita1014]

Thank you Y.ueno

I will try various methods