7-274
ATAND(P)
Program Example
(1) The following program seeks the inverse tangent of the 64-bit floating decimal point real
number at D0 to D3, and outputs the angle to the 4 BCD digits at Y40 to Y4F.
[Ladder Mode]
[List Mode]
[Operations involved when D0 to D3 value is 1]
1
Calculates an angle (radian value) by TAN
operation ( ).
Converts the radian value into
an angle ( ).
Converts the angle in 64-bit floating-point
real number into an integer ( ).
Outputs the integer-converted angle
to a display device ( ).
1
2
3
4
Step Instruction Device
64-bit floating-point
real number
64-bit floating-point
real number
D1
1
D0D3 D2
64-bit floating-point
real number
D21
45
D20D23 D22
D11
0.785398
D10D13 D12
Conversion
to BIN
INTD
BCD operation
BCD
ATAND
Conversion to angle
DEGD
Y4F
BCD value
0045
Y40
D30
b15 b0
BIN value
45
TAN operation
1
1
2
3
4