KEYENCE Visual KV Series - Manual (Page 112)

2.4 Instruction Details
3-88
2
Chapter 2 Instructions
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 RET1
0005 LD T000 0012 ENDH
0006 RES 0500
Applications of HSP Instruction
■ High-speed fetching of input data
When the input signal at 0000 has pulses of 5-ms interval and 2-ms scan time and
input relay 0001 is ON, fetches data from input relay 0000 at high speed and outputs
1-s one-shot pulse from output relay 0500.
Coding
Timing diagram
* To input a signal having pulse interval shorter than the scan time, use the inter-
rupt instruction.
➮ Refer to "Chapter 3 Interrupts" (p. 3-191).
■ When using the interrupt instruction
Coding
0001 HSP
0000
0000
0500 T000 0500
#00010
T000
Line No. Instruction Operand
0000 LD 0001
0001 HSP 0000
0002 LD 0000
0003 OR 0500
0004 TMR 000 #00010
0005 ANB T000
0006 OUT 0500
ON
OFF
ON
OFF
0500
0000
0001
ON
2813
SET
EI
#00010
T000
2008
0500
T000
END
RETI
ENDH
INT
0500
RES
2002 0500
SET
0000
Turn ON for 1st scan only at startup.
Input time constant 10 µs
Turns ON
timer for 1s
when 0500
is ON.
Resets 0500 when T000 turns ON.
Sets 0500 when 0000 turns ON.
Interrupt enabled
Initial settings
Sets interrupt input at 0000.



1-s timer
Scan
1 s
Turn ON for 1st
scan only at startup.
HSP
KVNKA Chap 02_4aP.p65 08.3.11, 11:58 AM 88