Delta DVP-ES2 User Manual
Page 433
3 . I n s t r u c t i o n S e t
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API Mnemonic Operands
Function
131
D COS P
Cosine
Controllers
ES2/EX2 SS2 SA2
SE
SX2
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
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S: Source device (0°≦S＜360°) D: Operation result
Explanations:
1.
COS instruction performs cosine operation on S and stores the result in D.
2.
The value in S can be set as radian or degree by flag M1018.
3.
M1018 = OFF, radian mode. RAD = degree ×π/180.
4.
M1018 = ON, degree mode. Degree range: 0°≦degree＜360°.
5.
Flag: M1018 (Flag for Radian/Degree)
6.
See the figure below for the relation between the radian and the operation result:
R
S
-2
3
2
-2
2
3
2
2
2
-
1
-1
0
-
S: Radian
R: Result (COS value)
7.
If operation result in D is 0, Zero flag M1020 = ON.
Program Example 1:
M1018 = OFF, radian mode.
When X0 = ON, DCOS instruction conducts cosine operation on binary
floating value in (D1, D0) and stores the COS value in (D11, D10) in binary floating 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