Mitsubishi Electric MELSEC-Q/L - Conversion from Floating-Point Angle to Radian (Double Precision)

620
7 APPLICATION INSTRUCTIONS
7.12 Special Function Instructions
Conversion from floating-point angle to radian (double precision)
RADD(P)
Processing details
• The unit expressing the size of an angle is converted into the radian unit from the degree unit specified by (S), and its result
is stored into the device specified by (D).
• Conversion from degree to radian units is performed according to the following equation:
• When the operation results in -0 or an underflow, the result is processed as 0.
• When an input value is set using a programming tool, a rounding error may occur. For precautions, refer to Page 89
Precautions.
Operation error
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
(S): Angle to be converted to radian units or head number of the devices where the angle is stored (real number)
(D): Head number of the devices where the value converted in radian units will be stored (real number)
Setting
data
Internal device R, ZR J\ U\G Zn Constant
E
Others
Bit Word Bit Word
(S)   
(D)   
Error
code
Error details Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
4140 The specified device value is not within the following range:
0, 2
-1022
 | Specified device value | <2
1024
The value of the specified device is -0, a subnormal number, NaN (not a
number), or .

4141 The operation result exceeds the following range.
(when an overflow occurs)
|Operation result| < 2
1024

Universal LCPU
Basic
High
performance
Process Redundant
Command
Command
RADDP
RADD
RADDP
RADD S D
S D
(
)
()rad
64-bit floating-point
real number
64-bit floating-point
real number
+3
S
+2
S
S
+1
S
+3
D
+2
D
D
+1
D
Radian unit = Degree unit
180