6F3B0250
Basic Hardware and Function
161
7. Instructions
FUN 027
+
Addition
Expression
Input
-
[
A
+
B
®
C
]
-
Output
Function
When the input is ON, the data of
A and the data of B are added, and the result is stored in C.
If the result is greater than 32767, the upper limit value 32767 is stored in
C, and the output is turned
ON. If the result is smaller than -32768, the lower limit value -32768 is stored in
C, and the output is
turned ON.
Execution condition
Input
Operation
Output
OFF
No execution
OFF
ON
Execution (normal)
OFF
Execution (overflow or underflow occurred)
ON
Operand
Name
Device
Register
Constant Index
X
Y
R
S
T.
C. XW YW RW SW
T
C
D
I
J
K
A
Augend
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
B
Addend
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
C
Sum
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Example
When R005 is ON, the data of D0100 and the constant data 1000 is added, and the result is
stored in D0110.
If the data of D0100 is 12345, the result 13345 is stored in D0110, and R010 is turned OFF.
D0100
12345
+
D0110
13345
R010 is OFF
Constant
1000
If the data of D0100 is 32700, the result exceeds the limit value, therefore 32767 is stored in
D0110, and R010 is turned ON.
D0100
32700
Overflow
+
D0110
32767
R010 is ON
Constant
1000
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