Processing details
• These instructions multiply the double-precision real number in the device specified by (s1) by the double-precision real
number in the device specified by (s2), and store the multiplication result in the device specified by (d).
(s1)+3
(s1)+2
(s1)+1
(s1)
Double-precision real number
-1022
|specified value (stored value)| <2
• Value 0 or 2
and (d).
• If the operation result is -0 or an underflow occurs, the operation result turns out to 0.
• When an input value is set using the engineering tool, a rounding error may occur. Refer to the following for the precautions
on setting input values using the engineering tool.
Page 49 Precautions
Operation error
Error code
Description
(SD0)
The value input to (s1) is -0, a subnormal number, NaN (not a number), or .
3402H
The value input to (s2) is -0, a subnormal number, NaN (not a number), or .
3403H
The data output from (d) exceeds the following range. (An overflow has occurred.)
|(d)|<2
7 APPLICATION INSTRUCTIONS
738
7.9 Real Number Instructions
(s2)+3
(s2)+2
(s2)+1
×
Double-precision real number
1024
(s2)
(d)+3
(d)+2
Double-precision real number
1024
can be specified or stored in the devices specified by (s1), (s2),
(d)+1
(d)