KEYENCE Visual KV Series - Manual (Page 364)

8.2 Details
3-340
8
Chapter 8 Programming Examples
0000
STA
TM03
LDA
#00030
STA
TM02
LDA
#00010
END
00
CALL
2002
NEXT
RET
ENDH
SBN
00
2002
STA
TM05
SUB
TM02
STA
TM04
ADD
#00001
LDA
TM03
FOR
TM05
2002
STA
#TM04
LDA
#TM03
DEC
TM04
DEC
TM03
STA
#TM02
LDA
#00000
1000
DIFU 1000 Shifts data from
DM0010 to DM0030.
Designates the
shift start
DM No. (DM0010). Designates the
shift end
DM No. (DM0030).
Uses the indirect addressing
function to designate DM Nos.
Clears the start DM to #0000
after the data is shifted.
The program lines which
execute the data shift
are groped as the subroutine.
Shift level
Synchoronous
signal
External reset 0008 is predetermined on hardware even if you do not specify in
the program. However, you have to set external reset enable relay 2115 to ON.
Coding
Line No. Instruction Operand Line No. Instruction Operand
0000 LD 2008 0014 LDB 0500
0001 EI 0015 CTH 1 0004
0002 CON 0016 CTC 0 #60000
0003 SET 2813 0017 LD 2002
0004 CON 0018 LDA CTH0
0005 SET 2103 0019 CON
0006 CON 0020 STA DM0000
0007 SET 2113 0021 END
0008 CON 0022 INT CTC0
0009 RES 2114 0023 LD 2002
0010 CON 0024 SET 0500
0011 SET 2115 0025 RETI
0012 CON 0026 ENDH
0013 RES CTH0
Application of Subroutine CALL
■ DM shift
Shifts the data from current DM to the next DM at UP edge of the synchronous
signal (timing).
As the number of DMs to be shifted increases, the required scan time becomes
longer.
Ladder diagram
CAUTION
KVNKA Chap 08.p65 08.3.11, 0:12 PM 340