KEYENCE Visual KV Series - Manual (Page 357)

8.2 Details
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1 8
Chapter 8 Programming Examples
Coding
➮ Refer to p. 3-86.
Application of MC-MCR instruction
■ Emergency stop circuit
When input relay 0000 is ON, 0500 turns ON for 1 s, then 0501 turns ON for 2 s,
and then 0502 turns ON for 3 s, repeatedly.
Once input relay 0000 turns OFF, 0500 turns ON when 0001 is ON, 0501 turns ON
when 0002 is ON, and 0502 turns ON when 0003 is ON.
Timing diagram Coding
Ladder diagram
Line No. Instruction Operand Line No. Instruction Operand
0000 LD 2008 0007 END
0001 EI 0008 INT 0000
0002 SET 2813 0009 LD 2002
0003 LD 0500 0010 SET 0500
0004 T000 #00010 0011 RETI
0005 LD T000 0012 ENDH
0006 RES 0500
0000
0001
0002
0500
0501
0502
0003
0001
0002
0003
0004
0005
0006
0007
0008
0009
0010
0011
0012
0013
0015
0014
0016
0017
0018
0019
0020
0000
0000
1000
SET RES RES
1100 1101 1102
DIFU
1002 1002
STG
1100 1200 #00010 T000
JMP
1101
T000
MC
STG
1101 1201 #00020 T001
JMP
1102
T001
STG
1102 1202 #00030 T002
JMP
1100
T002
MCR
MC 1001
0001
0002
0003
MCR
1203
1204
1205
1200
1203
0500
1201
1204
1202
1205
0501
0502
END
ENDH
1000 1001
Line No. Instruction Operand
0000 LD 0000
0001 OUT 1000
0002 CON
0003 OUB 1001
0004 LD 0000
0005 DIFU 1002
0006 CON
0007 AND 1002
0008 SET 1100
0009 CON
0010 RES 1101
0011 CON
0012 RES 1102
0013 LD 1000
0014 MC
0015 STG 1100
0016 OUT 1200
0017 CON
0018 TMR 000 #00010
0019 CON
0020 AND T000
0021 JMP 1101
0022 STG 1101
0023 OUT 1201
0024 CON
0025 TMR 001 #00020
0026 CON
0027 AND T001
0028 JMP 1102
0029 STG 1102
0030 OUT 1202
0031 CON
0032 TMR 002 #00030
0033 CON
0034 AND T002
0035 JMP 1100
0036 MCR
0037 LD 1001
0038 MC
0039 LD 0001
0040 OUT 1203
0041 LD 0002
0042 OUT 1204
0043 LD 0003
0044 OUT 1205
0045 MCR
0046 LD 1200
0047 OR 1203
0048 OUT 0500
0049 LD 1201
0050 OR 1204
0051 OUT 0501
0052 LD 1202
0053 OR 1205
0054 OUT 0502
0055 END
0056 ENDH
KVNKA Chap 08.p65 08.3.11, 0:12 PM 333