Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 734

Processing details
• These instructions subtract the double-precision real number in the device specified by (s2) from the double-precision real
number in the device specified by (s1), and store the 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).
• 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 in the device specified by (d) exceeds the following range. (An overflow has occurred.)
|(d)|<2
7 APPLICATION INSTRUCTIONS
732
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)