Delta VFD25AMS23ANSAA

Chapter 16 PLC Function ApplicationsMS300
740
API
ATAN
Find the arctangent of a binary floating point number
135
D
P
bit device
Word device
16-bit command
－
－
－
－
32-bit command (9 STEP)
DATAN
Continuous
execution type
DATANP
Pulse
execution type
Flag signal: none
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S
＊
＊
＊
D
＊
Notes on operand usage:
Refer to the function specifications table for each device in series for
the scope of device usage.
 S: the designated source (binary floating point number). D: the ATAN value result.
 ATAN value = tan
-1
The figure below shows the relationship between input data and result:
 When X0 = ON, finds the ATAN value of the designated binary floating point
number (D1, D0) and stores the result in (D11, D10), as a binary floating point
number.
X0
DATAN
D0 D10
R
S
2
2
-
0
S: Input (TAN value)
R: Result (ATAN value)
D 1 D 0
D 10
D 11
Binary floating point
ATAN value
binary floating point