DAQ Board Trigger Control

[yeers]

hello
I am currently downloading and modifying raster scanning files from the community.

I want to add a trigger signal to it.

Currently I am using two daq boards.
One for data acquisition and one for scanner control.
When I apply the data acquisition trigger to the scanner using “trigger start vi” I get an error.

Is there any way to apply the trigger here ?

Or I want to create a fictitious trigger signal.

As a result, I want to synchronize the trigger start signal.

data acquisition vi

scanner vi

[yeers]

error code -89125

[yeers]

I've set the trigger line to be the same as the property node, but can I actually detect the trigger?