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Protuner 32 Control System Optimisation Tool

The Protuner
™ 32 System Analysis for Windows software is a suite of programs, which work seamlessly together. The software is based on Microsoft Windows operation, with drop down menus and mouse commands such as: left-click, right-click, drag, click and double-click. If you are unfamiliar with Windows operation, we recommend that you read the “Getting Started Microsoft Windows” user’s guide.

Data Acquisition

The Protuner
 Data Acquisition application is an intuitive software program, which is easy to configure and use. Features include:

Direct or network connection to your control system using a control system specific third party DDE server and the Protuner
generic DDE driver

Direct or network connection to your system using a control system specific OPC server and the Protuner
 generic OPC driver

Connection to your control system I/O utilizing the Protuner
 1600PC analogue data acquisition modules connected to your computer serial port

All set-up configurations are saved as files

High speed real time trending of control system variables

User selected data window time and total sample time with on-the-fly total sample time changes


The Protuner
 Data Analysis application is a powerful system analyser program, specifically designed with all the tools to effectively analyse, interpret, and document the dynamic characteristics of an installed control system. The system analysis software documents the controllability of a system, problems with valves, quality of measurement signals, installed linearity, and the optimum tuning parameters for individual loops and dynamic de-couplers between loops.

File Conversion Features

 4.X and 5X files to Protuner 32 format

 32 data files to ASCII format and Excel XLS format

ASCII Excel XLS formatted data files to Protuner
 32 formatted data files

Convert Protuner
 32 files to new Protuner 32 files with user selected signal filtering, data rates, and data channel selection

Data Editing Features

Edit and overwrite raw data using filter data and graphic edit functions

Data Display Features

Tab to display all data or individual data traces

Check box to switch between full scale to auto scaled display

Edit data channel name and engineering unit scale

Window and zooming functions

Features to arrange display by checking data to be displayed with user adjustable offset entries

X-axis displayed in relative time in seconds, relative time in H:M:S.00 format, or real time scale

Individual data graphs displayed in percent of span or engineering units

Balloon comments—that can be saved and recalled—can be added to any arranged data display

Text notes; attaches notes to file for documentation

Icon selected cursor changes mouse movement to on-screen cursoring function

Loop Analysis Functions to Calculate Optimum Tuning Parameters

Loop Analysis Data Preparation Features:
Select data representing controller output and process variable of controller being tuned

Tab to display PD (process demand) and PV (process variable) data on individual or overlapped graphs

Window and zoom step test data to identify test data representing true loop dynamic response

Graphic editing feature to remove excessive noise from recorded data and saves edit data as part of tuning record without overwriting original data

Lag, and averaging, filter constants are graphically added to real process variable data to graphically determine optimum controller filter tuning constant; the filter constant chosen is then used in calculation of tuning parameters

Calculation and documentation of valve hysteresis and deadband, and signal noise on unfiltered and unedited test data

Tuning procedure determines loop transfer function utilising Techmation Inc. exclusive point to point digital LaPlace transformation of test data from time zero to time infinity; and table of tuning parameters utilising pole cancellation and gain margin, phase margin, and damping factor criteria, based on user specified controller algorithm

Loop Analysis Report

Tab to display complete loop analysis tuning report data.

Report tab displays complete tuning report summary including: table of tuning parameters, loop data documentation, loop signature report, and controller setting used in the analysis

Test data tab displays the test data used in the analysis

Loop data tab displays the step test data used in the analysis of the process transfer function including raw data, edited data, and filtered data.

Noise tab displays the steady state data used in the calculation of the signal noise and features include the ability to recalculate the signal noise

Hysteresis tab displays the test data used in the analysis of the valve hysteresis and features include the ability to recalculate the hysteresis

Bode Both, Bode Gain, Bode Phase, Nichols, and Nyquist tabs display the plots representing the solutions for the open loop process transfer function at hundreds of frequencies; the plots can be displayed combined with the controller tuning parameters from the Loop Analysis Report screen or with user entered tuning parameters

Model tab displays the Bode gain and phase plots of the actual process transfer function overlapped with Bode plots of the Model transfer function calculated for use in the Simulator; the modelling feature allows you to modify the model parameters to achieve a better fit to the real Bode plots of the process transfer function to improve the accuracy of the simulation

Balloon comments can be added to each tab to document findings

Text notes can be added to the Loop Analysis Report Record

The Loop Analysis Report can be saved as a Record quickly retrieved

Frequency Analysis Functions

Test data tab displays the raw test data originally chosen for the frequency analysis and allows the user to window a new section of data for analysis; the new data selection automatically updates all analysis functions

Synopsis tab displays the statistic, histogram, power spectrum, and cumulative spectrum plots on a single page

Statistics tab displays statistical analysis report on data being analysed

Histogram tab is a plot of the percentage of the data values that are within a range of process values (a cell); together all the cells span the range of the data; the value of the mean minus two sigma and the mean plus two sigma are printed at the bottom of the plot

Power Spectrum tab shows the mean square intensities of the cycles (harmonics) plotted against frequency (period)

Cum. Spectrum tab of the integrated normalised intensities from the power spectrum calculation which shows, for a given frequency, the relative contribution of it and all lower frequencies to the variance of the time series data

Autocorrelation tab shows the correlation amplitude as the Y-axis and the time as the X-axis; the span of the X-axis is based on the number of lags

Cross correlation tab shows the correlation amplitude as the Y-axis and the lag time as the X-axis; the variable selected for the analysis is cross correlated against second variable (a significant positive lag time means the variable selected is behind—lags—variable 1)

Balloon comments can be added to all individual plots

All analysis work can be saved as a record inside the file for easy retrieval and printing

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Tel: +44 (0) 1427 610092

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