Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 193)

5.7 Data Shift Instructions
5.7.7 Byte-to-word Expansion (BEXTD)
5-124
5.7.7 Byte-to-word Expansion (BEXTD)
( 1 ) Operation
The BEXTD instruction expands the byte data from an area designated by the number of bytes to move from the first
source register address into individual word data, one byte at a time, and moves the word data to the area that starts
with the first destination register address. When the byte is expanded into a word, the upper byte of the word is set to 0.
The byte data from an area designated by the number of bytes to move from the first source register address is
expanded into individual word data and moved to the area that starts with the first destination register address.
( 2 ) Format
∗ C and # registers cannot be used.
a
b
c
d
a
00H
b
00H
c
00H
d
00H
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
Upper byte
e
MW†††††
MW††††† + 1
MW††††† + 2
MW††††† + 3
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
MW†††††
MW††††† + 1
Number of bytes
to move
Source area Destination area
Number of bytes
to move
First destination
register address
First source
register address
Icon:
Key entry: BEXTD
Parameter Name
Applicable Data Types
B W L F A Index Constant
First source register
address (Src)
× { × × × × ×
First destination
register address
(Dest)
× { * × × × × ×
Number of bytes to
move (Width)
× { × × × { {