PC DIO 24 : How can I write to different lines of the same port without reset

[Oliver UK]

Using the write digital line.vi I can set individual lines of a port. Is there a way of getting the lines to latch so they will not reset when another line is modified.

Thanks
Oliver

[LucaP.]

Hi

The "problem" is the 8255 Chip which is on this board. Check this link to understand how the behaviour of this chip is: http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/3e25a9780f2c48b986256120005af098?OpenDocument
I recommend you to use the advanced DIO VI's (DIO port config, DIO port write) instead of the easy VI's. There are examples in LV which shows how to work with them (Examples for devices with 8255 CHip)!