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Metadatasource - reference itself
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hi, i have a meta, with this as follows...
[script to monitor number of mins that temp is above a certain limit]
value=mon.value;
if (temp.value>=(sp.value+offset.value)) value=value+1;
else value=0;
return value;this script is set to run at the start of each minute..
basically....
if temp >= setpoint + offset, increment meta point...
then i have a binary meta which....
if no. of mins >= delay mins, value=true, else false...
this all works but the awkward bit if the first meta point referencing itself (necessary for the increment?)
mainly because i cannot pick the meta "mon" until i've created the point and left and returned to meta point editing..
is there another way i can reference the value?
thanks
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i realise i can do this with an alarm trigger from a binary meta point based on temp, sp and offset... but i want to give the user the ability to alter the alarm delay, and so this needs to be a data point..
and as far as i'm aware, i cannot link an alarm delay to a data point.
thanks
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Can't you just use a high limit detector on the temp point?
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i could but i want to make it compare to a point variable instead of fixed value so that an end user can change the level.