Mitsubishi Electric MELSEC FX3U Programming Manual page 565

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
3) In the case of "1 ≤ n ≤ 3", the high-order {4 × (4-n)} bits of
For example, when "n" is "3", the low-order 4 bits of
and the high-order 4 bits of
b15
+0
S
+1
+2
Ignored
Related instruction
Instruction
DIS (FNC144)
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
S
• 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.
X000
b15
D0
0 0 0 0 0
D1
0 0 0 0 0
D2
0 0 0 0 0
are set to "0".
D
b4 b3 b0
Low-order 4 bits
Low-order 4 bits
Low-order 4 bits
Combined data
Separates 16-bit data in 4-bit units.
+n are outside the specified device range (error code: K6706)
S
FNC143
D0 D10
UNIP
b4 b3 b0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 1 0 0
Combined data
19 Data Operation 2 – FNC140 to FNC149
19.4 FNC143 – UNI / 4-bit Linking of Word Data
are set to "0".
D
to
S S
b15 b12b11
D 0 0 0 0
When "n" is "3", b12
to b15 are set to "0".
Description
K3
END
b15 b12b11
D10
1 0 0 0 0 1
1
1
Because "n" is "K3",
they are set to "0".
+2 are stored in b0 to b11 of
b8 b7 b4 b3 b0
b4 b3
0 0 1 0 1 0 1 0 0 0
11
,
D
12
13
14
15
16
b0
1
17
18
19
20
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