Omron CX-Process Monitor Plus 2, Operation Manual

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Tuning Screens Section 4-8
Note Execution of AT can be cancelled from the above dialog box by inputting 0 in
the New Data Field and clicking the
OK Button. (The value for AT displayed in
the upper-left region of the Tuning Screen will return to 0.)
Changing P, I, D The following example shows how to change P (the proportional band).
1,2,3... 1. Click Proportional Band (P) displayed in the upper center of the screen.
The Change Data Dialog Box will be displayed.
2. Select the Change To Field.
The ten-key dialog box will be displayed as shown.
Note Refer to 5-6 Labels, Alarm Sounds, and Ten-key Settings for set-
tings to disable the ten-key pad (i.e., to input directly from the key-
board).
3. After using the mouse (or the keyboard) to enter a numerical value, click
the
OK Button.
The display will return to the Change Data Dialog Box shown in Step 1.
4. Click the OK Button.
You can change the settings for I (integral time) and D (differential time) in the
same way.
Changing Other Settings You can use the procedure explained above to change the settings for MV
High/Low Limit, High/High Alarm, High Alarm, Low/Low Alarm, Low Alarm,
and Deviation Alarm in the same way.
Executing Fine Tuning Fine tuning (FT) can be executed for either Basic PID (011) or Advanced PID
(012). Fine tuning lets the user use fuzzy inferences to set PID constants as
required for more accurate control.