how to deal with 1 D array of BV tag

[nh]

i want that when i click a boolean control one tag get starts displaying in Historical Trend viewer and when i click upto 8 booleans 8 respective trends of tags start getting displayed and logged in HTV simultaneously. Just to clear the picture suppose i click  checkbox1 and tag1 start displaying in HTV and when i click checkbox 3 and 4 both tag 3 and 4 start displaying in HTV simultaneously.

I am sending u an approach but both trends could not be displayed simultaneously

your urgent reply would be highly appreciable.

Vino

[TiTou]

Hello vino,

Just a quick help, I would do this (see attached VI) to always have to right number of trends to display, then with the indexes of TRUE values, you know which trends have to be displayed, does this help ?

By the way, instead of having 8 booleans I would recommend to have an array of boolean, just so that you can easily add/remove trends 😉

[nh]

thanx for the reply ..but this cannot help me bcoz ""quick help.vi" has refused from being opened....giving the error messege that "this is not a VI"

plz help me again

[TiTou]

Well... I repost it, but it works fine on my computer... which version of LabVIEW are you running ? Mine is LV 7.1.1

Just in case, I join a screen shot of the code, feel free to ask further explanations if it's not clear.

Message Edité par TiTou le 03-27-200609:26 AM