Parameters/address space
4.6 Explanation of parameters
ET 200SP F-TM Count 1x1Vpp sin/cos HF (6ES7136-6CB00-0CA0)
42 Equipment Manual, V1.0, 01/2021, A5E47073911-AA
Measured value
Specifies one of a possible three different engineering unit conversions as follows:
• Frequency: The average number of counts per second reported in millihertz (hertz *
1000)
• Period duration: The average period between two counts in microseconds (seconds *
1000000)
• Velocity: The speed of movement in a given direction. Velocity represents the units of
measure per time base * 1000.
Negative values are reported when counting down, positive values are reported when
counting up.
Note
Fields directly associated with velocity calculations are only enabled when velocity is selected.
Update time
Specifies the interval at which the F-TM Count module updates the measured values to the F-
CPU. Setting a longer update time interval allows the module to collect more data to calculate
a more accurate measured value, but increases the reaction time.
ction time is influenced by the chosen update time when using measured
values, and SLS as part of the safety application program.
Time base for velocity measurement
Specifies the time base unit for the velocity you want for the calculation output in increments
of milliseconds or seconds.
Counts per unit of measure
Specifies the number of counts from the incremental encoder per relevant distance unit for
the velocity measurement.
Safety Function - Safe Stop
Enables safe operating stop (SOS) monitoring.
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