Mitsubishi Electronics FX3G User Manual

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3G

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3GC

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3UC

 Series

Programming Manual - Basic & Applied Instruction Edition

19 Data Operation 2 – FNC140 to FNC149

This instruction combines the low-order 4 bits of consecutive 16-bit data.

1) The low-order 4 bits of "n" 16-bit data starting from 

 are combined, and stored in 

 as shown below.

2) Specify a number 1 to 4 in "n".

In the case of "n = 0", UNI instruction is not executed.

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".

Head device number storing data to be combined

16-bit binary

Device number storing combined data

n

Number of data to be combined (0 to 4, When "n" is "0", UNI instruction is not executed.)

System User

Digit Specification

System User

Special 

Unit

Index

Con-
stant

Real 

Number

Charac-

ter String

Pointer

X Y M T C S D .b KnX KnY KnM KnS T C D R U \G

V Z Modify K H

E

" "

P

n

P

FNC 143

UNI

−
−

Mnemonic

Operation Condition

16-bit Instruction

7 steps UNI

UNIP

Mnemonic

Operation Condition

Continuous

Operation
Pulse (Single)

Operation

32-bit Instruction

  S

  D

  S

  D

   

S

   

D

Low-order 4 bits
Low-order 4 bits
Low-order 4 bits
Low-order 4 bits

Command

input

FNC143

UNIP

S 

D 

n

b15

b4 b3

b0

S 

+0

1
2

Ignored

D 

"n"
points

3

Combined data

b15

b12b11

b8 b7

b4 b3

b0

   

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".

0 0 0 0