Ipidcontroller Function Block Operation - Allen-Bradley Micro800 General Instructions Manual

Programmable controllers

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IPIDController function

block operation

When Input Auto is TRUE, the IPIDController runs in normal auto mode.

When Input Auto is FALSE, it causes reset R to track (F-GE) forcing the

IPIDController Output to track the Feedback within the IPIDController limits

at which time the controller switches back to auto without incrementing the

Input Initialize

For Input Initialize, changing from FALSE to TRUE or TRUE to FALSE when

AutoTune is FALSE causes the IPIDController to eliminate any proportional

gain action during that cycle (for example, Initialize). You can use this process to

prevent bumping the Output when changes are made to the SetPoint using a

switch function block.

Rockwell Automation Publication 2080-RM001D-EN-E - February 2015

Proportional Integral Derivative (PID) instruction