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PID control
PID Gain Re-scaling
PID Gain Re-scaling
Example
Theory:
Normalising PV and output: gains in units and in percent
Gain of
Controller (PV → output)
Process (output → PV)
PV range
min
max
unit
Output range
min
max
unit
Gain
OUT/PV
Given as
engineering units (OUT/PV)
normalised (%/%) (%/%)
% per unit (%/PV)
unit per % (OUT/%)
Related
Knowledge
· 3
Normalising PV and output: gains in units and in percent
PID control
Kp, Ki, Kd, Ti, Td and proportional band: units and conventions
PID control
Scaling and RAW values (Siemens 0…27648)
Instrumentation
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