
2.4 Instruction Details
1
2
3-99
Chapter 2 Instructions
Description
W-UE
• When input relay 0000 is ON, the output operand turns ON at the rising edge of
the input operand.
W-DE
• When input relay 0002 is ON, the output operand turns ON at the falling edge of
the input operand.
Note 1: If the input operand is already ON before input relay 0000 turns ON, the
output operand does not turn ON.
Note 2: The W-UE/W-DE instruction must be used in subroutine programs that are
executed every scan time (because rising and falling edges cannot be recognized).
Note 3: Output operand relay Nos. for W-UE/W-DE instructions cannot be dupli-
cated in a program.
Operands
* Note that of I/O Nos. 7000 to 9915, those that are not assigned to expansion or
remote I/O unit ports can be used for internal utility relays.
Key operation
0000 1002
0001
1000
0000
0001
1000
1000
1002
DIFU
Same
operation
Input operand
Output operand
0002 1003
1001
0002
0003
1001
1001
0003
1003
DIFD
Same
operation
Input operand
Output operand
W-UE
E
W-DE
Lo
First operand
(nnnn)
Second operand
(mmmm)
ENT
R-SRCH
W-UE / W-DE
Visual KV KV-300 KV-10/16 KV-24/40/80
nnnn: nnnn: nnnn: nnnn:
0000 to 17915 0000 to 0009 0000 to 6915 T000 to T119
T000 to T249 00500 to 17915 0000 to 2915 C000 to C119
C000 to C249 T000 to T249 T000 to T063 CTC0 to CTC3
CTC0 to CTC3 C000 to C249 CTC0 to CTC3 mmmm:
mmmm: CTC0 to CTC3 mmmm: 1000 to 1915
1000 to 1915 mmmm: 1000 to 1915 3000 to 6915
3000 to 9915 1000 to 1915
3000 to 6915
*7000 to 9915
KVNKA Chap 02_4bP.p65 08.3.11, 0:00 PM99
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