KEYENCE Visual KV Series - Manual (Page 243)

4.3 Setting and Operation of High-speed Counters
3-219
Visual KV
Series
1
4
Chapter 4 High-speed Counters
Phase differential input
• Inputs phase differential signals from input relays 0004 and 0006 and counts
pulses at CTH0.
• The count value is written to DM0000.
• When the current value of CTH0 reaches "60000", clears the value, turns ON
output 0500, and stops counting at CTH0.
• Input relay 0008 is used as an external reset.
Cording
● Initial setting
Special utility relays
•
Turn ON 2013 to reset the current value of CTH0 when CTC0 turns ON.
• Turn ON 2113 and turn OFF 2114 to set the high-speed counter to double (x2)
multiplication mode.
• Turn ON 2400 and turn OFF 2401 to enable the external reset.
The counter is reset at the rising edge of input 0008.
Note : External reset input 0008 is set with hardware. Programming is not necessary
except for setting the external reset enable relays (2400 to ON and 2401 to OFF).
2103
SET EI
2113
SET
2114
RES
2401
RES
CTH0
RES
0500
2008
0500
2002
CTH0
0004
2002
END
INT
CTC0
RETI
ENDH
#60000
CTC0
2002 HSP
0004
HSP
0006
HSP
0008
CTH0
LDA
DM0000
STA
SET
2400
SET Initial setting
Line No. Instruction Operand Line No. Instruction Operand
0000 LD 2008 0016 HSP 0006
0001 EI 0017 HSP 0008
0002 CON 0018 LDB 0500
0003 SET 2103 0019 CTH 0 0004
0004 CON 0020 CTC 0 #60000
0005 SET 2113 0021 LD 2002
0006 CON 0022 LDA CTH0
0007 RES 2114 0023 CON
0008 CON 0024 STA DM0000
0009 SET 2400 0025 END
0010 CON 0026 INT CTC0
0011 RES 2401 0027 LD 2002
0012 CON 0028 SET 0500
0013 RES CTH0 0029 RETI
0014 LD 2002 0030 ENDH
0015 HSP 0004
➡
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