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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
11 Rotation and Shift Operation – FNC 30 to FNC 39
11.8 FNC 37 – WSFL / Word Shift Left
Caution
Note that "n2" words are shifted every time the drive input turns ON from OFF in WSFLP instruction, but that
"n2" words are shifted in each operation cycle in WSFL instruction.
Error
If the transfer source is equivalent to the shifted device , an operation error occurs (error code:
K6710).
Program example
1. Shifting devices with digit specification
+8
+2
n2 (in the case of "n2=3")
n1 (in the case of "n1=9")
[1]
Overflow (data to
be deleted)
+1
D
+7 +6
+5 +4 +3 +8 +7 +6
D
+5 +4 +3 +2
D
+1
+5 to before shift (n2=3)
D
[3] Copy
[2]
"n2" bits are
shifted leftward
(n2=3).
+2 to before shift (n2=3)
+2 +1
D
Before
execution
After
execution
S
S
S
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
S
S
S
D
[3]
[2]
[1]
X007 X006 X005 X004 X003 X002 X001 X000
Y017 Y016Y015 Y014 Y013 Y012 Y011 Y010 Y007 Y006 Y005 Y004 Y003 Y002 Y001Y000
X000
FNC 37
WSFLP
K1X000 K1Y000 K 4 K 2
Specify a same digit for devices with digit specification.
D
S
n1 n2
Make sure that the number of digits is
equivalent (Kn
).
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