gitcontainer / pytunelogix

Python PID Tuner with an additional PID Simulator and CSV Logger

pytunelogix

Python PID Tuner for ControlLogix

Windows Exe (no install required) -> https://github.com/Destination2Unknown/pytunelogix/releases

To install use:

pip install pytunelogix

PID tuning in 4 Steps:

A-> Record PRC using Logger
B-> Tune using PID Tuner
C-> Refine tune using PID Simulator
D-> Test tune with FOPDT Simulator for Logix PLC

To use, create a launch file:

examplelaunch.pyw #use pyw for no console

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PID Logger

To launch, use:

from pytunelogix.pidlogger import clxlogger

clxlogger.main()
    

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Stage 1 - PID Tuner based on a CSV file of a Process Reaction Curve (PRC)

Notes and Limitations:

• Assumes CV and PV data stored at 100ms intervals.

• Assumes there is a single step in CV.

• Ambient is calculated as an average of the PV prior to the step change.

• Doesn't work correctly with a ramp in CV or with multiple CV steps.

To launch, use:

from pytunelogix.stage1 import csvtuner

csvtuner.main()

Direct Acting:

Reverse Acting:

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Stage 2 - Open loop tune

A.mp4

WIP

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Stage 3 - Closed loop tune

cl.mp4

WIP

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Stage 4 - Adaptive tuner

ad.mp4

WIP

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PID Simulator

Direct Acting:

Reverse Acting:

To launch, use:

from pytunelogix.simulate import simulator

simulator.main()
    

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ControlLogix FOPDT Process Simulator (PID Simulator)

Simulates a Process:

Direct Acting:

Reverse Acting:

To launch, use:

from pytunelogix.clxpidsim import clxsim

clxsim.main()
    

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Windows Standalone Exe: