11 decrement (dec), 1 ) operation, 2 ) format – Yaskawa MP900 Series Ladder Programming Manual User Manual
Page 111
5.3 Numeric Operation Instructions
5.3.11 Decrement (DEC)
5-42
5.3.11 Decrement (DEC)
( 1 ) Operation
A value of 1 is subtracted from the integer or double-length integer data. No overflow or underflow will occur for
either an integer or double-length integer. This operation handles overflows and underflows in the same way as the
SUBX instruction.
Output Data Behavior
In the example shown above, the data is an integer. With double-length integers, subtracting 1 from
-2,147,483,648 (80000000 hex) results in 2,147,483,647(7FFFFFFF hex).
( 2 ) Format
∗ C and # registers cannot be used.
Data
Data
− 1
Data
0
-1
32,767
-32,768
-1
-1
-2
…
32,767 (7FFF hex)
-32,768 (8000 hex)
Parameter Name
Applicable Data Types
B
W
L
F
A
Index
Constant
Data (Dest)
×
{
*
{
*
×
×
{
×
Data
Icon:
Key entry: DEC