Mitsubishi Electric R32MTCPU - Arctangent: ATAN

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4 OPERATION CONTROL PROGRAMS
4.7 Standard Functions
Arctangent: ATAN
Setting data
■Usable data
: Usable
■Description, data type of result
Processing details
•TAN
-1
(arctangent) operation is performed on the TAN value data specified with (S) to find an angle.
• The operation result is in an angle (degree) unit.
• If (S) is an integer type, it is converted into a floating-point type before operation is performed.
Operation error
An operation error will occur if:
• (S) is an indirectly specified device and its device No. is outside the range.
Program example
■Program which performs the TAN
-1
(arctangent) operation of D0F and substitutes the result to
#0F
Format Number of basic steps Usable steps
F/FS G
ATAN(S) 4 
Setting
data
Usable Data
Bit
device
Word device Constant Calculation
expression
Bit
conditional
expression
Comparison
conditional
expression
16-bit
integer
type
32-bit
integer
type (L)
64-bit
floating
point
type (F)
16-bit
integer
type
(K/H)
32-bit
integer
type
(K/H, L)
64-bit
floating
point
type (K)
(S)   
Setting data Description Data type of result
(S) TAN value data on which TAN
-1
(arctangent) operation will be performed Floating-point type
#0F = ATAN(D0F)
45.0
#2 #1#3 #0
#0F 1.0
D2 D1D3 D0
D0F