Edneg, Ednegp Floating-Point Sign Inversion (Double Precision) - Mitsubishi MELSEC-Q/L Programming Manual

6.3.13 EDNEG, EDNEGP Floating-point sign inversion (Double precision)
6.3.13
EDNEG, EDNEGP
EDNEG
EDNEGP
: Head number of the devices where the 64-bit floating decimal point data whose sign is to be reversed is stored (real number)
D
Setting Internal Devices
Data
Bit Word
––
D
Function
(1) Reverses the sign of the 64-bit floating decimal point type real number data designated by
designated by .
D
(2) Used when reversing positive and negative signs.
Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into
SD0.
Error
code
The specified device value is not within the following range:
-1022
4140
0, 2 | Specified device value | < 2
The specified device value is 0.
Program Example
(1) The following program inverts the sign of the 64-bit floating decimal point type real number data at D0 to D3 when X20
goes ON, and stores result at D0 to D3.
[Ladder Mode]
[Operation]
D3 D2 D1 D0
1.2345
Command
Command
J \
R, ZR
Bit Word
Error details
1024
[List Mode]
Step
D3 D2 D1 D0
High
Basic
performance
EDNEG
EDNEGP
Zn
U \G
––
Q00J/
Q00/ QnH
Q01
–– ––
Instruction Device
EDNEG, EDNEGP
Process LCPU
Redundant Universal
D
D
Constants Other
, and stores at the device
D
QnPH QnPRH QnU LCPU
–– ––
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