Mitsubishi MELSEC-Q/L Programming Manual page 525

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
4100
The specified device value is -0.
The specified device value is -0, unnormalized number, nonnumeric,
4140
and ± .
The operation result exceeds the following range (when an overflow
occurs):
4141
128
2 | Operation result |
*2: There are CPU modules that will not result in an operation error if -0 is specified.
For details, refer to Page 88, Section 3.2.4.
Program Example
(1) The following program converts the radian value set with 32-bit floating decimal point type real number at D20 and D21
to angles, and stores the result as a BCD value at Y40 to Y4F.
[Ladder Mode]
[List Mode]
Step Instruction
[Operations involved when the values at D20 and D21 are 1.435792]
Conversion
D21 D20
to angle
1 . 4 3 5 7 9 2
32-bit floating-point DEG
real number
7.12.16 DEGD, DEGDP Conversion from floating-point radian to angle
(Double precision)
7.12.16
DEGD, DEGDP
DEGD
DEGDP
: Radian angle to be converted to degrees or head number of the devices where the radian angle is stored (real number)
S
: Head number of the devices where the value converted in degrees will be stored (real number)
D
Setting Internal Devices
Data
Bit Word
––
S
––
D
Error details
*2
Converts a radian value into
an angle (
1
Converts the angle in
32-bit floating-point real
number into an integer (
Outputs the converted integer
to a display device (
Device
Conversion
D11 D10
to BIN
8 2 . 2 6 4 8 2
32-bit floating-point BIN
real number
Command
Command
J \
R, ZR
Bit Word
Q00J/
Q00/ QnH
Q01
–– ––
–– ––
)
)
2
)
3
D0
BCD operation
b15 b0
82
BIN value BCD
High
Basic
Process
performance
DEGD S
DEGDP S
Zn
U \G
––
––
DEGD, DEGDP
QnPH QnPRH QnU LCPU
–– ––
–– ––
–– ––
Y4F Y40
0 0 8 2
BCD value
Redundant Universal LCPU
D
D
Constants
Other
E
––
–– ––
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