Publication 1763-RM001C-EN-P - October 2009
452 LCD - LCD Information
The Data resident in POT0 represents the position of trim pot 0. The Data
resident in POT1 corresponds to the position of trim pot 1. Those valid
data range for both is from TMIN to TMAX. POT0 and POT1 value is
evaluated on valid value when a new program is downloaded. If the
previous Trimpot value is out of the new Trimpot range, Trimpot value is
changed to the nearest bound. For example, old POT0 =1000, new
TMIN=0 and TMAX=250, controller changes the POT0 from 1000 to 250
after downloading program. You can check the ERR and ERN to see if the
POT value is modified or not. The POT0 operation described above is
identical to POT1.
Instruction Display Window (WND)
WND is set when LCD menu is in U-MSG. The controller also notifies this
status to LCD screen as U-MSG status.
OK key in Customized Display (OK)
OK is set when OK key is pressed. This bit should be cleared so as to get
the next key input. Because once OK key is pressed, this bit is set and
latched until it is cleared by manually. This OK bit is very useful for LCD
instruction. You can use this bit as any input of ladder logic when you
program with several LCD instructions.
ESC key in Customized Display (ESC)
Feature Address Data Format Type User Program
Access
WND - Instruction Display
Window
LCD:0/WND binary (bit) status read-only
Feature Address Data Format Type User Program
Access
OK - OK key in Customized
Display
LCD:0/OK binary (bit) status/
control
read/write
NOTE
OK bit is presented for handy interface to LCD
instruction and keypad, so it is just updated in U-MSG
screen.
Feature Address Data Format Type User Program
Access
ESC - ESC key in
Customized Display
LCD:0/ESC binary (bit) status/
control
read/write
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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