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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 RnSFCPU
RnPCPU
RnPCPU
(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
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......