Mitsubishi Electric MELSEC iQ-R Series - Subtracting Double-Precision Real Numbers

7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
729
7
Subtracting double-precision real numbers
ED-(P) [when two operands are set]
These instructions perform subtraction between double-precision real numbers.
■Execution condition
Setting data
■Description, range, data type
■Applicable devices
Processing details
• These instructions subtract the double-precision real number in the device specified by (s) from the double-precision real
number in the device specified by (d), and store the result in the device specified by (d).
• Value 0 or 2
-1022
|specified value (stored value)| <2
1024
can be specified or stored in the devices specified by (s) 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
Ladder ST
Not supported
( Page 731 ED-(P) [when three operands are set])
FBD/LD
Not supported
( Page 731 ED-(P) [when three operands are set])
Instruction Execution condition
ED-
ED-P
Operand Description Range Data type Data type (label)
(s) Subtrahend data or the start device where subtrahend data
is stored
0, 2
-1022
|(s)|<2
1024
Double-precision real
number
ANYREAL_64
(d) Start device where minuend data is stored 0, 2
-1022
|(d)|<2
1024
Double-precision real
number
ANYREAL_64
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(s)   
(d)         
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s) (d)
(d)(d)+3 (d)+1(d)+2 (s)(s)+3 (s)+1(s)+2 (d)(d)+3 (d)+1(d)+2
-
Double-precision real number Double-precision real number Double-precision real number