Delta Electronics AH500, Manual

Page: 208 / 547

C h a p t e r 5 A p p l i e d I n s t r u c t i o n s
API Instruction code Operand Function
131 D COS P S, D
Cosine of a binary
floating-point number
Device X Y M S K 16# F KnM KnS D W T C V Z
S

 
D
 
Pulse instruction 16-bit instruction 32-bit instruction (6 steps)

–

E xp la nat io n

Whether the source value in S is a radian or a degree depends on the
state of a radian/degree flag.

S : Source value; D : Cosine value

If a radian/degree flag is OFF, the source value in S is a radian.
Radian=Degree
×π
/180.

If a radian/degree flag is ON, the source value in S is a degree.
(0
o
≦
Degree
≦
360
0
)

If an operation result is 0, a zero flag will be ON.

The cosine of the source value in S is stored in D .
The relation between radians and cosine values is shown below.
R
S
-2
3
2
-2 2
3
2
2
2
-
1
-1
0
-
S:
R adi an
R: Co sine va lu e

Radian/Degree flag: If a radian/degree flag is OFF, the source value in S
is a radian. If a radian/degree flag is ON, the source value in S is a
degree in the range of 0° to 360°.

SM1064 is the zero flag in an Ox motion subroutine, and SM968 is the
zero flag in O100.

SM1049 is the operation error flag in an Ox motion subroutine, and
SM953 is the operation error flag in O100.
5 - 9 3