Rockwell Automation 1766-L32AWA, User Manual, Page: 108 / 310

108 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Chapter 5 LCD and Keypad
2. Then, press OK on the LCD keypad. The trim pot select screen displays, as
shown below.
3. The last trim pot whose data value you changed is selected by default. If
you are accessing to this screen for the first time, POT0 is selected by
default.
4. Select a trim pot, either POT0 or POT1, whose data value you want to
change using the Up and Down keys on the LCD keypad. In this example,
we will select POT0.
5. Then, press OK on the LCD keypad. The trim pot0 screen displays, as
shown below.
TMIN and TMAX indicate the range of data value for the trim pots, both
POT0 and POT1. The factory default for TMIN, TMAX, and POT0 values
are 0, 250, and 0 in decimal, respectively. TMIN and TMAX on this screen
are read only, but you can change them using the LCD Function File in
your application program. The TMIN and TMAX elements can only be
changed by a program download.
For more information on how to change trim pot configuration
including TMIN and TMAX, see the LCD Function File described in the
MicroLogix 1400 Programmable Controllers Instruction Set Reference
Manual, publication
1766-RM001 .
When you enter this screen, the last digit of the POT0 value flashes. It
indicates the current digit. Press Up and Down on the LCD keypad to
change the value of the current digit. Press Left and Right to select a
different digit as the current digit.
If the key in mode is set to Continuous, the changes are applied
immediately after you press Up and Down. While, if it is set to Discrete,
you have to press OK to apply the changes after you change the data
value. For more information on how to set the key in mode,
Change Key
In Mode on page 98 .
6. If you have finished changing the data value of the selected trim pot,
POT0 in this example, press ESC to return to the trim pot select screen,
as shown in
step 2 .
IMPORTANT The same TMIN and TMAX values are used for both trim pots, POT0 and
POT1. This behavior is intended by design for simplicity in Trim Pot
configuration.
The KeyIn mode has an effect only when you change the data value of a trim pot on a
Trim Pot screen, either the Trim Pot 0 or Trim Pot 1 screen.