This function is called in the Expression field of the Trend Tag configuration form for instant trend tags. Makes the element of the array that stores the value assigned to a trend tag available to the trend system.
Syntax
CSV_TrendX_GetVal(iTrendNo)
#iTrendNo:
Number of the instant trend tag.
Return Value
Last stored value of the variable associated with the instant trend tag, as an integer between -1 and 32000.