Hi Nancy, thanks for your respond.
Yeah, it seems that few or non have experienced this before and its really annoying, especially since this is a supervision project. So, I'm programming on a desktop with labview 8.6, the variables are hosted on a Schneider OPC server witch are hooked up with a simulator/testbench.
Firstly the OPC-groups and the variables are defined in a spreadsheet. The variables are also given different attributes like alarming levels, start level etc. Then the spreadsheet are run trough a instance generator which result in a txt file. The txt file are imported in a "config vi" wich gives the variables the different attributes and then creates and deploy them programatically.
Secondly, when i look at the event viewer after the SVE crashes I see these errors:
- Service control manager (The National Instruments Variable Engine service terminated unexpectedly).
- DCOM (DCOM got error "General access denied error " from the computer abpc10858 when attempting to activate the server:{13486D51-4821-11D2-A494-3CB306C10000}).
In that order.
When the variable engine service crashes it doesent respond to anything, I cant stop or restart it and it doesnt help to reboot the computer. When I encountered this the first time I tried to google the problem, without results. And since I'm a beginner conserning SVE and windows servicesI just desided to reinstall labview + DSC. When i launched the DSM I didnt see anything out of the normal (probably because I dont know what to look for).
edit start: You can drag and drop Xcontrol widgets to the frontpanel. These widgets, when placed on the frontpanel, get a reference to their respective variables through a initiate VI. The crash have occured when I have undeployed and deleted the variables, and then generated and deployed the variables again without deleting and reinserting the widgets. So it is a posibillity that the SVE crashes because of an inconsistency between references (just an idea). edit finished
Thanks for the tip, the 7th may meeting sounds interesting.
Tomas