Count

e.g. Count('Expression','Level','Hysteresis','EdgeType','Reset=0')

The function counts the crossings of 'Expression' through 'Level'.

The 'Hysteresis' parameter can be used to define a tolerance band which is above and below 'Level' by equal amounts. Only complete crossings through the tolerance band are counted.

The 'EdgeType' parameter determines which kind of edges are counted.

The 'Reset' parameter is used to reset the counter value to 0. 'Reset' can also be formulated as an expression.

Note

The 'Reset' condition must not be related to the Count function itself.

Tip

You can also use the count function for digital signals. Enter 0.5 as the level and 0.1 as the hysteresis, for example. This then means that all changes from FALSE to TRUE and vice versa will be detected and counted.

Arguments

Give at least the following arguments.

Function	Count
Input (expression)	Signal or expression for which the crossings are to be counted
Level	Specification of the level value
Hysteresis	Specification of a hysteresis band
Edge type	Indication of whether rising, falling, or rising and falling edges should be counted
	'EdgeType' < 0	Only falling edges (leaving hysteresis band in negative direction)
	'EdgeType' > 0	only rising edges (leaving hysteresis band in positive direction)
	'EdgeType' = 0	Falling and rising edges
Reset	Optional digital parameter that can be used to reset the counter. ‘Reset’ can also be an expression itself.
	'Reset' > 0	Counter is reset
	'Reset' = 0	Counter value is retained / continues to count (default)