Mitsubishi Electric MELSEC iQ-R Series - Inverting the Sign of Double-Precision Real Number

768
7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
Inverting the sign of double-precision real number
EDNEG(P)
These instructions invert the sign of double-precision real number data.
■Execution condition
Setting data
■Description, range, data type
■Applicable devices
Processing details
• These instructions invert the sign of the double-precision real number data in the device specified by (d) and store the
inverted data in the device specified by (d).
• The instructions are used to invert positive and negative signs.
Operation error
Ladder ST
ENO:=EDNEG(EN,d);
ENO:=EDNEGP(EN,d);
FBD/LD
Instruction Execution condition
EDNEG
EDNEGP
Operand Description Range Data type Data type (label)
(d) Start device containing the double-precision real number
subject to sign inversion
 Double-precision real
number
ANYREAL_64
EN Execution condition  Bit BOOL
ENO Execution result  Bit BOOL
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 $
(d)         
Error code
(SD0)
Description
3402H The value input to (d) is -0, a subnormal number, NaN (not a number), or .
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(d)
EN ENO
d
(d)(d)+3 (d)+1(d)+2
4.23542
(d)(d)+3 (d)+1(d)+2
-4.23542
Double-precision real number Double-precision real number