KEYENCE KV-D20 - Manual (Page 53)

3. Examples of Ladder Programs
3
53
Example of displaying messages with titles
Display messages with titles.
The current values of C000 and C001 are displayed with comments.
The comments of relays 10000 and 10001 are used as titles.
Switching between screens is disabled.
Operator screen
Ladder program
1. Turn on Bit 0 of DM1676 ($0001) to allow the screen to be changed only to the
operator screen.
2. Assign relay 10000 to the device displayed on the first line (specify "#50000" in
DM1580) and set the attributes so that only the comment is displayed (Bit 8:
ON) (DM1680 = $0100).
Assign relay 10001 to the device displayed on the fourth line (specify "#50001"
in DM1583) and set the attributes so that only the comment is displayed (Bit 8:
ON).
0001
0002
0003
0004
0005
0006
0007
0008
2002
0000
0002
C000
#65535
0001
$0001
DM1676
DW
C001
#00010
0003
1
0009
0010
0011
0012
0013
0014
0015
2002
2002
#50000
DM1580
DW
$0100
DM1680
DW
#50001
DM1583
DW
$0100
DM1683
DW
#21000
DM1581
DW
$D050
DM1681
DW
#21001
DM1582
DW
$D050
DM1682
DW
ENDH
END
2
3
F1 F2 F3 F4
1 2 3 4
*MILK CARAMEL NO 1*
PRODUCED:
470PACKS
DEFECTIVE: 12PACKS
ABCDE CO.
To display product information
Always ON
Display the current values of the counters and disable changes.
Always ON
Use the comments for internal utility relays 10000 and 10001 as titles.
Display titles.
Counter
Always ON
Initial setting
Switching to other modes is disabled. The screen cannot be changed.
Display values of counters 0 and 1 with titles.
kv_d20_manual.p65 08.3.10, 6:09 PM 53