Lenze E94A - Manual (Page 472)

5 Function blocks
5.126 L_SdInterExtrapolateAny - signal interpolation
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.126.1 Extrapolation function
The FB fills in missing process data by extrapolation. These process data may be missing because of
stochastic errors (e.g. EMC interferences) or the bus cycle being greater than the task cycle of the ap-
plication.
• Select a linear or a quadratic extrapolation in C04441.
• Set the number of extrapolation steps in C04442:
5.126.2 Interpolation function
The FB fills in missing process data by interpolation. These process data are missing because the bus
cycle is greater than the task cycle of the application.
• Select a linear or a quadratic interpolation in C04441.
• Set the number of interpolation steps in C04442:
5.126.3 Signal characteristics
Extrapolation
[5-81] Quadratic extrapolation
C04442
Bus cycle [ms]
Task cycle [ms]
-------------------------------------- =
C04442
Bus cycle [ms]
Task cycle [ms]
-------------------------------------- =