KEYENCE Visual KV Series - Manual (Page 133)

2.4 Instruction Details
1
2
3-109 Chapter 2 Instructions
■ Sequence program
Assign the relays to execute the five processes on the previous page as follows:
1 Wait until the start switch is turned ON.: Input relay 0000
2 Turn on lamp 1 for 1 second.: Output relay 0500
3 Turn on lamp 2 for 3 second.: Output relay 0501
4 Turn on lamp 3 for 5 second.: Output relay 0502
5 Turn on lamps 1, 2, and 3 simultaneously: Output relays 0500, 0501, and 0502
for 7 seconds.
The following is the ladder diagram for the I/O assignments above, and is written
with and without STG instructions.
• Without STG instruction
• With STG instruction
0000 T000
#00010
T000
1000
SET
1000
T000 T001 1001
1000
#00030
T001
1001
T001
T003
T002 1002
T002 T003 1100
1101
1102
#00050
T002
#00070
T003
1002
1100
1100
0500 1000
1101
0501 1001
1102
0502 1002
2008
0000 T000 1001
STG
1002
JMP
#00010
T000
0500
T001 1002
STG
1003
JMP
#00030
T001
0501
T002 1003
STG
1004
JMP
#00050
T002
T003 1001
JMP
#00070
T003
0502
1004
STG
0500 0501 0502
1001
SET
OR circuit is required because
double coil cannot be used.
1000 (0500) turns ON for 1 second
when input 0000 turns ON.
1001 (0501) turns ON for 3 seconds
when T000 turns ON.
1002 (0502) turns ON for 5 seconds
when T001 turns ON.
1100 (0500), 1101
(0501), and 1102 (0502)
turn ON for 7 seconds
when T002 turns ON.
The process is repeated from the
beginning when T003 turns ON.
The process is repeated from the
beginning when T003 turns ON.
1001 turns ON at the start of operation.
0500 turns ON for 1 second when input
0000 turns ON. Then, 1002 turns ON.
0501 turns ON for 3 seconds when
1002 turns ON. Then, 1003 turns ON.
0502 turns ON for 5 seconds when 1003
turns ON. Then, 1004 turns ON.
0500, 0501, and 0502 turn ON for 7
seconds when 1004 turns ON.
STG
KVNKA Chap 02_4bP.p65 08.3.11, 0:00 PM 109