Mitsubishi Electric MELSEC iQ-R Series - Calculating the Arc Tangent of Single-Precision Real Number

7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
781
7
Calculating the arc tangent of single-precision real number
ATAN(P)
These instructions calculate the angle from the tangent specified by a single-precision real number.
*1 The ATAN instruction does not support the ST and FBD/LD. Use the standard function, ATAN.
Page 1905 ATAN(_E)
■Execution condition
Setting data
■Description, range, data type
■Applicable devices
Ladder ST
*1
ENO:=ATANP(EN,s,d);
FBD/LD
*1
Instruction Execution condition
ATAN
ATANP
Operand Description Range Data type Data type (label)
(s) Tangent data used for arc tangent calculation, or the start
device containing the tangent data
0, 2
-126
|(s)|<2
128
Single-precision real
number
ANYREAL_32
(d) Start device for storing the operation result  Single-precision real
number
ANYREAL_32
EN Execution condition  Bit BOOL
ENO Execution result  Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(s)   
(d)         
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s) (d)
EN ENO
ds