USING OPTOENET PID MODULE TUNER SOFTWARE
12
SNAP PID Module User’s Guide
Note that the hexadecimal control word in the Options window changes to reflect the
changes you make to control settings.
5.
(Optional) To hide or display graphed values on the trend chart, click the View tab and in the
Pens section select or deselect the PV (Input), Setpoint, and Output checkboxes.
All values are graphed by default.
6.
(Optional) To change the colors used for graphed values, click the View tab and click the
color box next to each value, select a color, and click OK.
7.
Click OK to close the Options window.
8.
In the OptoENET PID Module Tuner main
window, enter values for the following terms in
the corresponding fields:
•
P
—Gain (proportional)
•
I
—Integral
•
D
—Derivative
•
SP
—Setpoint
If you need to calculate starting P, I, D, and SP
values, use the PID velocity algorithm shown on
. You can also start PID calculations using the default P, I, D, and SP values that
appear in these fields and then adjust the terms as you tune the PID loop.
9.
Click Apply.
Step 3—Run PID Calculations
1.
In the Ethernet Connection section of the main window, click Scan to start receiving PID
module values from the SNAP Ethernet brain.
The Connection Status indicator in the lower right-hand corner of the window turns green,
and the Trend chart starts graphing process variable, setpoint, and output values.
2.
Click Auto Mode to start running PID calculations on the SNAP-PID-V module.
The PID calculation status indicator in the lower right-hand corner of the window turns
green.
3.
To view calculated PID values that are not shown in the main window, click Debug.
Connection Status indicator
PID Calculation Status indicator
