Hi!I have to save a certain value from one gauge-cycle('tick18') to the next.Yes, I could save it into a file, but there should be a better way?Or can I use a normal variable and don't initialize it...so that the old value is kept in this variable over one gauge cycle.Regards,Harry

Unless you are entering code, please to use the "Check here if you want..." box... It makes your message very difficult to read for us old folks! :)Use the latter approach...FLOAT64 fCurrentTick = 0 ;FLOAT64 fPreviousTick = 0 ;--------------------fCurrentTick = tick18var.var_value.n ;fPreviousTick = fCurrentTick ;

Thanks a lot.And yes, I'll take care of the formatting :-wave Kind regards,Harry