the number of channels in the data does not match the number of channels in the task.

[Canucks.canucks]

I want to test my DAq with 2 output signal. This is my VI

This is the error i get..How can i send 2 signal ..IE: make my Task channel to two

Possible reason(s):

Write cannot be performed, because the number of channels in the data does not match the number of channels in the task.

When writing, supply data for all channels in the task. Alternatively, modify the task to contain the same number of channels as the data written.

Number of Channels in Task: 2
Number of Channels in Data: 3
 

[Gregory · Accepted solution]

That means you set it up saying your array would be size 2, but when you give it data, your array is size 3. If you accidentally clicked the 3rd element in the array, you have to right click >> data operations >> delete element.