Fnc143 - Uni / 4-Bit Linking Of Word Data - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
19.4 FNC143 – UNI / 4-bit Linking of Word Data
Outline
This instruction combines the low-order 4 bits of consecutive 16-bit data.
1. Instruction format
FNC 143
UNI
2. Set data
Operand type
S
D
n
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
D
n
Explanation of function and operation
1. 16-bit operation (UNI/UNIP)
1) The low-order 4 bits of "n" 16-bit data starting from
below.
Command
input
S
"n"
points
2) Specify a number 1 to 4 in "n".
In the case of "n = 0", UNI instruction is not executed.
562
Mnemonic
16-bit Instruction
P
7 steps UNI
UNIP
Head device number storing data to be combined
Device number storing combined data
Number of data to be combined (0 to 4, When "n" is "0", UNI instruction is not
executed.)
Digit Specification
FNC143
S
UNIP
b15 b4 b3
+0 Low-order 4 bits
1 Low-order 4 bits
2 Low-order 4 bits
3 Low-order 4 bits
Ignored Combined data
19.4 FNC143 – UNI / 4-bit Linking of Word Data
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
are combined, and stored in
S
D n
b0
b15
D
19 Data Operation 2 – FNC140 to FNC149
Mnemonic Operation Condition
−
−
16-bit binary
Others
Con- Real
Index
stant Number
V Z Modify K H E
b12b11 b8 b7 b4 b3
Data type
Charac-
Pointer
ter String
" " P
as shown
D
b0