Using Digital Trigger in VILogger

[Jogwa]

I am using Ni-6033E with VILogger 1.1.
The question I have is, if I can use the +5V signal (terminal 34) and wire it back to DIO0 (terminal 25) through a switch, and start acquisition/logging in VILogger using the switch? I have configured DIO0 as a digital input line in VILogger under Virtual Channel.
If not, how do I trigger data acquisition/logging in VILogger using the digital input (DIO0 to DIO7)?

[Jeremy_L]

Hi Jogwa,

The answer is yes, you can start logging in VILogger using your switch and a digital input line. However, you cannot use DIO0 for the digital trigger input line. You must use one of the PFI channels, which are designed for triggering input. So, in your case wire the +5V signal back to PFI0. Then, you can create your Virtual Channel and use that as your trigger in VILogger.

Hope this helps!

Jeremy L.
National Instruments

[Jogwa]

Thanks for your answer. I was able to get the DIO0 channel to trigger logging. I configured DIO0 as a digital input channel and in VILogger->NI-DAQ task->Attributes->Logging Conditions, I checked 'Control logging using digital trigger' and selected DIO0 as the trigger. I had a switch between DIO0 and DGND and toggling the switch turned ON and OFF logging. The task will have to be kept running as this controls only logging and not the task itself.