PCI-6711 Trigger and Generate Different Waveform

[tsechang]

I am trying to generate a DC voltage to control an actuator (0-3V). 

Basically, when receiving a trigger signal, the board will generate a steady 0V; then for the next trigger signal, it will generate 0.1V and so on until it reaches 3V and then it will start over from 0V.  

The trigger signals are roughly 5~10 Hz, and connected to port PFI6.

I was trying to find a function to see if the program is triggered or not and if it is, the voltage will increase by 0.1V.  But, I can't find such a function.  

I am not pretty sure how to construct the code now.  I would appreciate hearing any thought on this.  Thanks.

[santo_13]

Since you just need a stable DC value for each trigger, I would suggest you to use the trigger signal as sample clock and write a waveform where each sample value corresponds to the trigger in order.

This way, DAQ will iterate through each sample in the waveform for each trigger signal.

[santo_13 · Accepted solution]

An example implementation of my suggested idea. I don't know if this actually works but as per my understanding, it should and might require some level of debug to get it working.

[tsechang]

There is no issue to run the program.  It works really well and the output is exactly what I want.  Thank you so much!