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Mitsubishi Electric MELSEC FX3U - Page 565

Mitsubishi Electric MELSEC FX3U
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563
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
19 Data Operation 2 – FNC140 to FNC149
19.4 FNC143 – UNI / 4-bit Linking of Word Data
11
FNC30-FNC39
Rotation and
Shift
12
FNC40-FNC49
Data Operation
13
FNC50-FNC59
High Speed
Processing
14
FMC60-FNC69
Handy
Instruction
15
FNC70-FNC79
External FX I/O
Device
16
FNC80-FNC89
External FX
Device
17
FNC100-FNC109
Data
Transfer 2
18
FNC110-FNC139
Floating Point
19
FNC140-FNC149
Data
Operation 2
20
FNC150-FNC159
Positioning
Control
3) In the case of "1 n 3", the high-order {4 × (4-n)} bits of are set to "0".
For example, when "n" is "3", the low-order 4 bits of to +2 are stored in b0 to b11 of ,
and the high-order 4 bits of are set to "0".
Related instruction
Errors
An operation error occurs in the following cases; The error flag M8067 turns ON, and the error code is stored
in D8067.
When to +n are outside the specified device range (error code: K6706)
When "n" is outside the range from "0 to 4" (error code: K6706)
Program example
In the program below, the low-order 4 bits of D0 to D2 are combined and stored in D10 when X000 turns ON.
Instruction Description
DIS (FNC144) Separates 16-bit data in 4-bit units.
D
S
S
D
D
Low-order 4 bits
Low-order 4 bits
Low-order 4 bits
b15 b4 b3 b0
S
+0
+1
+2
Ignored
D
Combined data
b15 b12b11 b8 b7 b4 b3 b0
When "n" is "3", b12
to b15 are set to "0".
0000
S
S
b15 b4 b3 b0
D0
D1
D2
D10
b15 b12b11 b4 b3 b0
Combined data
10001010100100001000000000000000
1010000000000000
1001000000000000
Because "n" is "K3",
they are set to "0".
X000
FNC143
UNIP
D0 D10 K3
END

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