604
7 APPLICATION INSTRUCTIONS
7.12 Special Function Instructions
TAN operation on floating-point data (double precision)
TAND(P)
• The TAN (tangent) value of the angle specified by (S) is calculated and its result is stored into the device specified by (D).
• Angles designated at (S) are set in radian units (degrees 180). For conversion between degrees and radian values,
see the RADD and DEGD instructions.
• When angles designated by (S) are /2 radians, or (3/2) radians, an operation error will be generated in the calculation of
the radian value, so care must be taken to avoid such errors.
• 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.
• 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 data of which the TAN (tangent) value is obtained or head number of the devices where the angle data is stored (real number)
(D): Head number of the devices where the operation result 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
An error occurred during operation.
Universal
LCPU
Basic
High
performance
Process
Redundant
Command
Command
TANDP
TAND
TANDP
TANDSD
S D
TAN (
)
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
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