start external device

[Karlito]

Hallo

I would like to ask If it is possible to start an external device by signal in LV 7.1. I know the way with set DI high wait for second and then switch it back to low (with a sequence structure) to low works but I thought perhabs there is a ready function to do this where you could just specify to which line supply the pulse and perhabs how long for. Also with the BNC 2110 do I have to use the DIO's for this or the PF's can be used instead ??

Thank's for any suggestions

Karlito

[IS]

Hello Karlito,

I don't know what kind of board you are using but I assume its a multifunction daq board. As you allready did, you can create digital pulses using the digital output lines . but then the pulse width will allways have to be generated in software timing (with a wait function) . e-series boards does not support hardware timed digital output.
The most convenient way to generate a desired pulse would be to make use of one of the counters of the board. There are different examples showing how to do it (eg. gen dig pulse.vi). In this case you'll create a pulse on the output of the respecting counter.

I. Schumacher
Application Engineering
National Instruments