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5 OPERATION CONTROL PROGRAMS
F/FS G
5.6.4 Arcsine : ASIN
Format ASIN(S) Number of basic steps 2
[Usable data]
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)
Coasting
timer
16-bit
integer
type (K/H)
32-bit
integer type
(K/H, L)
64-bit
floating
point
type (K)
(S) —
— —
: Usable
[Setting data]
Setting data Description Data type of result
(S)
SIN value data on which SIN
-1
(arcsine) operation
will be performed
Floating-point type
[Functions]
(1) SIN
-1
(arcsine) operation is performed on the SIN value data specified with (S) to
find an angle.
(2) The SIN value specified with (S) must be within the range
-1.0 to 1.0.
(3) The operation result is in an angle (degree) unit.
(4) If (S) is an integer type, it is converted into a floating-point type before operation is
performed.
[Errors]
(1) An operation error will occur if:
• (S) is outside the range -1.0 to 1.0; or
• (S) is an indirectly specified device and its device number is outside the range.
[Program examples]
(1) Program which performs the SIN
-1
(arcsine) operation of D0 and substitutes the
result to #0F
#0F = ASIN(D0)
D0
1
#3 #2
90.0
#1 #0
#0F
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