FP read digital

[Pierre_63]

hi,

is there a way to get a digital value only if the value change for at least more than 2 seconds ( for example).

I don't want to get vlaues if they change too fast.

Thnak you

[PJS]

Attached (LV8) is one method you could use.
Involves event structure and timeout manipulation.  Not sure how well you can hammer it into your code though.

I do not believe there is a "No code" way of doing this though.

Message Edited by Stradis on 06-06-2007 08:51 AM

[Pierre_63]

thank you,but it doesn't exactly fit to my wishes because it use a blocking loop : I have lot of digital inputs to read at 200 ms and have to make an operation if

predefined inputs values are ON  more than 1 s.

I expected to find out a solution to configure the DI module or using the "advise" function.

I will maybe use a cluster to store whe the input value start to be 1 and make a time calculation each time a read it again.

I hope to find a better solution.

Thank you

[Mohamed H]

Hello,

If you are using a 653x board and ni-daqmx, you can use this change detection example

http://zone.ni.com/devzone/cda/epd/p/id/5015

Regards.