Brief Manual on PID Tuning Program
  1. To change modes of operation, use the pull-down menu near the bottom part.

  3. To adjust U values manually, first choose Manual mode and then either use the scrollbar to the right of the bottom plot and/or use step change buttons near the bottom.

  4. Once under Relay mode, text boxes should appear to allow changes to values of u0 and h.

  5. Note: When values are being edited in the text boxes, the font should change to red. To accept the input, hit [ENTER] or [TAB], then the font should change back to black, indicating that the value has been changed.

  6. Under PID mode, you can toggle on and off, the integral and derivative modes. Text boxes will appear when the parameters are on.


  8. To change the setpoint, use the scrollbar to the right of the top plot. The red line will move to indicate the setpoint changes, while the box in the upper right corner shows the current value.



  10. To suspend the process temporarily, click on the PAUSE button near the top edge. The button changes to RESUME to allow the process to continue.

  11. (However, take note that this type of process suspension is not present in real time processes. It is included here simply to facilitate the following procedures: 1) send the picture for printing, 2) allow time for setting PID parameters 3) allow time for changes in Relay parameters 4) allow for manual step changes in either u or setpoint.)

    After a few seconds, a DATA button will appear.

    Clicking the DATA button will show a window containing the time, input and output data.

    To transfer these data to other programs such as spreadsheets, mathematics packages or word processors, put the cursor inside the window and select the text to copy and transfer to the clipboard. (In Windows, right click on the mouse and choose SELECT ALL, then right click on the mouse again and choose copy). Proceed to the desired program, e.g. the spreadsheet and choose PASTE function on the desired location.

    To remove the data window, just click on the HIDE DATA button.

    To resume simulation, click on the RESUME button.

  12. Before sending the page to printout, place some text in the appropriate areas located in the lower left section for both some notes as well as the group members' names ( space is allotted only for 3 members.)

Prior to printing, it is strongly suggested to first PAUSE the simulation. In order to printout the full page, change the settings for your printer to Landscape mode.

This page is maintained by Tomas B. Co ( Last revised 1/11/2000.

     Tomas B. Co
     Associate Professor
     Department of Chemical Engineering
     Michigan Technological University
     1400 Townsend Avenue
     Houghton, MI 49931-1295

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