DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-200
Chapter 5: Standard RLL Instructions
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The text message can be entered directly into the message field of the instruction set-up dialog,
or it can be located anywhere in user V-memory. If the text is located in V-memory, the LCD
instruction is used to point to the memory location where the desired text originates. The
length of the text string is also required.
From the
Direct
SOFT project folder, use the Instruction Browser to locate the LCD
instruction. When you select the LCD instruction and click OK, the LCD dialog will appear,
as shown in the examples. The LCD instruction is inserted into the ladder program via this
set-up dialog box.
Display text strings can include embedded variables. Date and time settings and V-memory
values can be embedded in the displayed text. Examples of each are shown.
Direct Text Entry
The two dialogs to the right show the
selections necessary to create the two ladder
instructions below. Double quotation marks
are required to delineate the text string. In
the first dialog, the text “Sludge Pit Alarm“
uses sixteen character spaces and will appear
on line 1 when the instruction is enabled.
Note, the line number is K1. Clicking the
“check” button causes the instruction to be
inserted into the ladder program.
By identifying the second Line Number
as K2, the text string “Effluent Overflow”
will appear on the second line of the display
when the second instruction is enabled.
"text message"
LCD
Line Number:
Kn
S l u d g e
P i t
A l a r m
E f f l u e n t O v e r f l o
"Effluent Overflo"
"Sludge Pit Alarm"
LCD
Line Number:
K1
LCD
Line Number:
K2
DS
Used
HPP
N/A
LCD
When enabled, the LCD instruction causes a user-defined text
message to be displayed on the LCD Display Panel. The display
is 16 characters wide by 2 rows high so a total of 32 characters
can be displayed. Each row is addressed separately; the maximum
number of characters the instruction will accept is 16.