Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 196)

5.7 Data Shift Instructions
5.7.8 Word-to-byte Compression (BPRESS)
5-127
Instructions
5
( 3 ) Programming Example
In the following programming example, the lower bytes of data are moved from the area of four words that starts with
the first source register address at MW00010 to the area of four bytes that starts with the first destination register
address at MW00020.
The BPRESS instruction is executed when switch 1 (DB000000) turns ON.
The following table illustrates how the word data in the source area is compressed and moved into byte data in the des-
tination area.
Source area
⇒
Destination area
Register Data Register Data
MW00010 Lower byte 12 hex MW00020 Lower byte 12 hex
Upper byte 23 hex Upper byte 34 hex
MW00011 Lower byte 34 hex MW00021 Lower byte 56 hex
Upper byte 45 hex Upper byte 78 hex
MW00012 Lower byte 56 hex
Upper byte 67 hex
MW00013 Lower byte 78 hex
Upper byte 89 hex