Eaton ELC-PB, Programming Manual

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3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m
3 - 3 1 7
API Mnemonic Operands Function
131 D COS P S, D Floating Point Cosine Operation
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S * * *
D *
DCOS, DCOSP: 9 steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S : Specified RAD value (0
°≦
S
＜
360
°
) D : Result of the COS operation
Description:
1. Source designated by S can be radians or an angle based on flag M1018.
2. When M1018= OFF, is set to radian mode. RAD=angle
×π
/180.
3. When M1018= ON, is set to angle mode. Angle range: 0
°≦
angle
＜
360
°
.
4. The COS value of an angle specified by S is calculated and the result is stored in the register
specified by D .
S: Radian
R: Result
Following shows the relation between radian and result:
S
-2
3
2
-2 2
3
2
2 2
-
1
-1
0
-
R
5. If result of D is 0, the Zero flag M1020=ON.
Program Example 1:
When M1018= OFF, it is in radian mode. When X0= ON, calculate the COS value of the angle
specified in (D1, D0) and store the result in (D11, D10). The value in (D1, D0) and the result stored
in (D11, D10) are all in binary floating point format.
M1002
RST M1018
X0
DCOS D0 D10
D1 D0
D11 D10
COS value
binary floating point
binary floating point
RAD value(degree x /180)
π