Lost Edges During Cyclic Measurement - Siemens SIMOTION Function Manual

Measuring Input TO - Part III
5.2 Fundamentals of Measuring Input technology object
Activation/deactivation of measurement job
The measurement job remains active until it is deactivated with the _disableMeasuringInput
command.
See also
Measuring input types - local and global measuring inputs (Page 131)
5.2.4.3

Lost edges during cyclic measurement

Lost edges
Lost edges are edges that did exist at the measuring input (after filtering) and were also to be
acquired according to the configuration (e.g. only rising edges), but were not signaled via the
system variables measuredValue1 and measuredValue2.
Lost edges do not result in incrementation of the counting variables counterMeasuredValue1
and counterMeasuredValue2.
Edges that are filtered out, for example, at X142 via the settable digital filter do not exist for
the measuring input logic.
Edges that are not "seen," for example, because the sensor is dirty, are not acquired in any
way.
Measured values
Measured values are only acquired for the edges that are also to be calculated according to
the configuration of the measuring input TO, that is, optionally
● 2 rising edges,
● 2 falling edges or
● one rising and one falling edge.
During parameterization, generate "only rising edges," that is 2 print marks (comprising 2 rising
and 2 falling edges) in total 2 measured values.
Edges can be lost in 2 ways:
144
Output Cams and Measuring Inputs
Function Manual, 04/2014