How to make successive I/O to a digital port without state reset?

[Djovanny]

Hi folks, sorry LabVIEW newbie  ~:-)

I'm developing for a lab an automation software and I have a small question:

Is it possible to make successive, single-pulse I/O on a digital port without resetting its state? Even between

different calls to the same subVI?

I browsed through the examples in my LabVIEW installation (v6.1, in order to use an old

machine, otherwise going to the trashbin) and all had an intermediate configuration step

(DIO Port Config.vi) which seems to reset the port value when inversing the data direction.

Any hints?

Thanx

..LabVIEW 6.1

[Dynamik]

Hi Djovanny,

      Check-out "Write to 1 dig port" in the 652x examples (lv6.1).  Notice how the config is done once, and the pattern is buffered in a shift-register - so specific bits can be changed without changing the rest.

cheers