Toshiba 6F3B0253 - Manual (Page 157)

6F3B0253
Basic Hardware and Function
155
7. Instructions
FUN 045 - 1 Decrement
Expression
Input
−
[ - 1 A ]
−
Output
Function
When the input is ON, the data of A is decreased by 1 and stored in A.
Execution condition
Input Operation Output
OFF No execution OFF
ON Execution ON
Operand
Name Device Register Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A Operation data
√ √ √ √ √ √ √ √ √ √
Example
At the rising edge of X005 changes from OFF to ON, the data of D0050 is decreased by 1 and
stored in D0050.
If the data of D0050 is 1022 before the execution, it will be 1021 after the execution.
D0050 D0050
1022 - 1 1021
Note
•
There is no limit value for this instruction. When the data of operand A is -32768 before the
execution, it will be 32767 after the execution.