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Period number
Starting and stop-
ping measurement
CM35 Counter Module
(4) J31069-D0416-U001-A5-7618
To eliminate inaccurate measurements, you can also perform the measure-
ment over several periods of the input signal (1 to 40).
An average value can be calculated at the end of the measuring interval.
Input
signal
Reference
Start
signal
Figure 6-1
Principle of period duration measurement over 3 periods of the input signal
The user program starts the individual channels. After a channel is started,
the period duration is acquired based on the parameterization. The channel
must be stopped before a new measurement can be made.
Period Duration Measurement Operating Mode
Measuring interval
1st meas.
2nd meas.
3rd meas.
1st meas.
6-3
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