Mitsubishi MELSEC Q Series Programming Manual page 647

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]
Step Instruction
[Operations involved when D0 to D3 value is 1]
D3 D2 D1
1
64-bit floating-point
real number
D23 D22 D21
45
64-bit floating-point
real number
Device
D0 D13 D12
1
TAN operation
1
0.785398
ATAND 64-bit floating-point
real number
Conversion D30
3
b15
D20
to BIN
45
BIN value
INTD
Calculates an angle (radian value) by TAN
operation ( ).
1
Converts the radian value into
an angle ( ).
2
Converts the angle in 64-bit floating-point
real number into an integer (
Outputs the integer-converted angle
to a display device ( ).
4
D11 D10
Conversion to angle
2
DEGD
BCD operation
b0 4 Y4F Y40
0 0 4 5
BCD value
BCD
ATAND(P)
1
).
3
7-273
1
2
3
4
6
6
7
8