Create Analog Signal Output

I want to test my VI for software analog triggering(attached) to arbitrary waveform.

So I tried that using "Create Analog Signal (in "SignalExpress")" instead of using function generator with physical channel.

But "Create Analog Signal" outputs DBL-type data and I can't connect to "DAQmx Create Channel".

How can I convert DBL data to Physical channel?

How can I output a "Create Analog Signal" output to physical channel?

Or how can I test my VI to arbitrary waveform?

Please help me. Thank you.