USING IOMANAGER UTILITY SOFTWARE
SNAP PID Module User’s Guide
7
•
If you have previously calculated PID values and parameters, use ioManager. See
ioManager Utility Software” on page 7
•
If you want to iteratively tune a PID loop, use OptoENET PID Module Tuner. This software
includes graphing features and is available free-of-charge from the Opto 22 Web site. See
“Using OptoENET PID Module Tuner Software” on page 8
for instructions.
IMPORTANT:
PID module settings are
not
saved when you cycle power to the SNAP Ethernet
brain and the PID module. PID module settings cannot be saved to the brain's flash memory. If
you turn off power to these components, you will need to re-enter PID module settings using
either ioManager or the OptoENET PID Module Tuner software.
Using ioManager Utility Software
ioManager does not provide visual feedback of changes to PID values. You must first calculate
optimal PID values for your application using the PID velocity algorithm described on
the PID variable formulas on
. After calculating these values, enter them in the
appropriate fields on the PID Module screen.
ioManager utility software was installed on your computer when the SNAP Ethernet brain was
installed and configured. See the
SNAP Ethernet Brain User’s Guide
for more information.
Entering PID Values
These instructions describe how to enter and modify PID values using ioManager’s Inspect mode.
You can also enter values as part of configuring and saving an I/O unit configuration file.
1.
On the PC, choose Start
➞
Programs
➞
Opto 22
➞
SNAP Ultimate
I/O
➞
ioManager
➞
ioManager.
The ioManager window opens.
2.
Select Inspect from the Mode menu.
The Inspect window opens
3.
Type the IP address of the brain in the field at the upper-left corner of the window.
4.
Click the PID button and from the submenu select Module.
5.
From the PID Module Number drop-down menu, select the number matching the position of
the SNAP-PID-V module on the SNAP rack.
6.
For each parameter in the Description column to be modified, enter a value in the corresponding
field in the Value column. Unless indicated, all parameters are entered in raw counts.
For parameter descriptions, see
“SNAP PID Module Reference” on page 17
7.
Click Apply.
