7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
721
7
Subtracting single-precision real numbers
E-(P) [when two operands are set]
These instructions perform subtraction between single-precision real numbers.
■Execution condition
■Description, range, data type
■Applicable devices
• These instructions subtract the single-precision real number in the device specified by (s) from the single-precision real
number in the device specified by (d), and store the result in the device specified by (d).
• Value 0 or 2
-126
|specified value (stored value)| <2
128
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 723 E-(P) [when three operands are set])
FBD/LD
Not supported
( Page 723 E-(P) [when three operands are set])
Instruction Execution condition
E-
E-P
Operand Description Range Data type Data type (label)
(s) Subtrahend data or the start device where subtrahend data
is stored
0, 2
-126
|(s)|<2
128
Single-precision real
number
ANYREAL_32
(d) Start device where minuend data is stored 0, 2
-126
|(d)|<2
128
Single-precision real
number
ANYREAL_32
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)
-
(d)(d)+1 (s)(s)+1 (d)(d)+1
Single-precision real number Single-precision real number Single-precision real number