Can I Configure NI cDAQ Hardware PFI Lines In FlexLogger To Trigger Data Acquisition?

Issue Details

I would like to know if there is any method for using the PFI lines (from a cDAQ chassis) in FlexLogger. Currently, I am attempting to use PFI0 on my cDAQ chassis as a trigger for data acquisition.

Solution

Signal or channel-based triggering is currently not supported in FlexLogger. The triggering mechanism available in FlexLogger is limited to data logging triggers, which are software-based and do not control the start or stop of data acquisition tasks.

All triggers defined within FlexLogger (e.g., logging triggers or event triggers) operate by evaluating the values read from the DAQ hardware. These are software triggers, not hardware-level triggers that initiate or terminate acquisition.

This design ensures that DAQ tasks remain continuously active, which supports features like live configuration and monitoring live channel updates.

Additional Information

For applications requiring hardware-based synchronization, such as using PFI lines to coordinate multiple devices or tasks, we recommend using LabVIEW. LabVIEW provides full access to hardware triggering capabilities, including configuration of PFI lines, start triggers, and advanced timing options.