What is the scaling of PID feedback value when the feedback is taken from pulse input on LI5?

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The scaling between feedback value (RPF parameter) and the pulse input when assigned as PID feedback (PIF=RP) dependss on following parameters:
- min PID feedback setting (PIF1)
- max PID feedback setting (PIF2)
- min pulse input frequency (PIL)
- max pulse input frequency (PFR)
The conversion between pulse input value and PID feedback is linear and PIL corresponds to PIF1 and PFR corresponds to PIF2.

For example, PIL=5kHz, PFR=20kHz, PIF1=0, PIF2=10000
Then
- at input frequency below 5kHz, the RPF=0
- at input frequency 10kHz, the RPF=3333
- at input frequency 15kHz, the RPF=6666
- at input frequency 20kHz, the RPF=10000