KEYENCE Visual KV Series - Manual (Page 377)

8.2 Details
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1 8
Chapter 8 Programming Examples
Coding
➮ Refer to p. 3-166.
Application of RRA/RLA instructions
■ Error input count
Writes the number of error detection sensors, which are connected to input relays
(7000 to 7015) and turn ON, into DM0000.
Ladder diagram
Coding
➮ Refer to p. 3-169.
Applications of INC/DEC instructions
■ Total count
Writes the total count of 4 lines (0000 to 0003) into DM0000.
Reset input relay is 0005.
Line No. Instruction Operand Line No. Instruction Operand
0000 LD 0001 0011 LDA 8000
0001 C 001 #00099 0000 0012 CON
0002 LD 2002 0013 ANDA $000F
0003 LDA 7000 0014 LD 2002
0004 CON 0015 SLA #04
0005 ANDA $F000 0016 CON
0006 LD 2002 0017 ORA DM0000
0007 SRA #12 0018 LD 2002
0008 CON 0019 TBIN
0009 STA DM0000 0020 CON
0010 LD 2002 0021 STA C001
Line No. Instruction Operand Line No. Instruction Operand
0000 LD 2002 0009 LD 2002
0001 LDA 7000 0010 LDA TM10
0002 FOR #00016 0011 CON
0003 LD 02002 0012 STA DM0000
0004 RRA #01 0013 CON
0005 CON 0014 LDA #00000
0006 AND 2009 0015 CON
0007 INC TM10 0016 STA TM10
0008 NEXT
Writes the TM10 data into DM0000, and then writes
#00000 to TM10.
2002
RRA
#01
INC
TM10
LDA
7000
#00016
2002
LDA
TM10
LDA
DM0000
STA STA
TM10 2002
2009
#00000
N E X T
F O R
Writes the data of 7000 to
7015 into internal register.
Executes FOR-NEXT instruction for 16 times.
Shifts the data including carry (2009) to right,
and increments TM10 by 1 when 2009 is ON.
KVNKA Chap 08.p65 08.3.11, 0:12 PM 353