KEYENCE Visual KV Series - Manual (Page 358)

8.2 Details
3-334
8
Chapter 8 Programming Examples
0000
0001
0500
0501
0000
0001
0002
0003
0500
0000
1000 0002
1001 0003
0001
1002 0500
1000
1001
1002
Application 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.
Timing diagram
Ladder diagram Coding
■ 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.
Timing diagram
Ladder diagram Coding
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
0000 0001
1000
1000 0500
0001 0000
1001
1001 0501
Leave
warehouse
Enter
warehouse
Line No. Instruction Operand
0000 LD 0000
0001 W-UE 0001 1000
0002 CON
0003 AND 1000
0004 OUT 0500
0005 LD 0001
0006 W-UE 0000 1001
0007 CON
0008 AND 1001
0009 OUT 0501
KVNKA Chap 08.p65 08.3.11, 0:12 PM 334