| LOOP
ANALYSISLoop Analysis refers to the procedure that
calculates a table of optimum P, PI, and PID tuning parameter from open loop bump test
data and completely documents the results in a Loop Analysis Report. The tuning procedure
employs a unique proprietary digital Laplace transformation of the time domain test data
for process transfer function identification. With the process transfer function
identified, the tuning parameters are calculated based on pole cancellation with gain
margin, phase margin, and closed loop damping factor specifications. |
Data Preparation Features
 | Bump test data displayed on separate and overlapped
auto scaled graphs
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| Window and zoom functions
to identify the bump test
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| Graphic edit functions to
"smooth" data
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| Lag and averaging filters
to visually determine optimum controller filter time constant
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| Tuning Conditions dialog
to specify controller algorithm being used for control
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Loop Analysis Report |
| Table of P, PI, and PID tuning parameters for fast, medium, and slow
response to load and setpoint changes with controller specifications and loop signature
data
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| Open and combined Bode,
Nichols, and Nyquist of process transfer function
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| Hysteresis and signal
noise documentation
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| Process model constants
are calculated and displayed
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| Loop Analysis Reports are
saved and attached to the file
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| Controller configuration, selected tuning
parameters, and the process model are loaded in the Simulator for quick off-line dynamic
testing of your system |
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