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Should PFI I/O Be Set To A Default Setting Before Use?

Hi everyone, I am using the PFI lines on my PXI DAQ Card (6229) for Counter Output frequency generation and Counter Input frequency readings.  I know these lines on power up of the PXI card are set to high impedance mode by default.  Should these lines be set to digital LOW '0' before setting them up for Counter Output or Counter Input use?  Is it good practice to set up the PFI lines to a default state before using them in an application?

 

Thanks!

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Hello testdesign, 

 

Thank you for your inquiry. You do not need to set the PFI lines to any specific value before setting up a Counter Input or Output task. The LabVIEW Example Finder has excellent Counter Input and Output examples if you have any questions on how to program or set up these tasks. These can be found by going to Help » Find Examples » Hardware Input and Output » DAQmx » Counter Input or Counter Output. 

 

 

Cameron Schaefer

Applications Engineer
National Instruments
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