KEYENCE Visual KV Series - Manual (Page 125)

2.4 Instruction Details
1
2
3-101 Chapter 2 Instructions
Application of W-UE Instruction
■ Input sequence check
Output relay 0500 turns ON when input relay 0000 is ON and input 0001, 0002, and
0003 turn ON in this sequence.
Output relay 0500 turns OFF when input relay 0000 is OFF.
Coding
Timing diagram
■ Fork lift truck IN/OUT judgement
Checks the input sequence. Output relay 0500 turns ON when input relay 0000 turns
ON and then 0001 turns ON. Output relay 0501 turns ON when input relay 0001
turns ON and then 0000 turns ON.
Coding
Timing diagram
0000
0500
0001
1000
1000 0002
1001
1001 0003
1002
1002
Line No. Instruction Operand
0000 LD 0000
0001 W-UE 0001 1000
0002 LD 1000
0003 W-UE 0002 1001
0004 LD 1001
0005 W-UE 0003 1002
0006 LD 1002
0007 OUT 0500
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF 0003
0001
0000
0500
0002
0000 0500
0501
1001
1000
0001
1000
1001 0000
1001
Line No. Instruction Operand Line No. Instruction Operand
0000 LD 0000 0005 LD 0001
0001 W-UE 0001 1000 0006 W-UE 0000 1001
0002 CON 0007 CON
0003 AND 1000 0008 AND 1001
0004 OUT 0500 0009 OUT 0501
ON
ON
OFF
ON
OFF
0500
0000
0501
0001
ON
Scan
Leave warehouse
Enter warehouse
Scan
W-UE
KVNKA Chap 02_4bP.p65 08.3.11, 0:00 PM 101