Rockwell Automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL - Manual (Page 61)

Chapter 7
Programming
7–23
Rungs 13 - 17 retrieve and display a message:
+
15
( PUT )
0413
0511
001
G 13
310
001
!
!
+ 14
310
15
( L )
410
16
!
!
+
+
! !
Rung 13:
When function key F6 is depressed, a number is retrieved from word 511 and
put in the output image table location (413) reserved for a stored message
number. (Refer to output image table.) Shown above - message number “1”
is being moved to word 413.
Rung 14:
In order for the message to continually be displayed, the Display Message bit
(410/16) of the output image table must be on. Rung 14 latches this bit on.
14
( PUT )
0412
00
G
!
+ 15
14
( U )
310
410
16
+
14
( PUT )
0413
0477
000
G
!
!
16
310
003
!
!
17
310 0477
00
!
!
+
!
!
+ +
+
!
! !
Rung 15:
When function key F5 is depressed the display
Rung 16:
message bit is released. Rung 16 and 17 put zeros
Rung 17:
in the data table words 412 and 413 so that the display is cleared when F5 is
depressed.
Part C: Displaying a
16–Character Message for
PLC–2