Delta DVP-10PM, Applications Manual

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5
Categories and Use of Basic Application Instructions
DVP-PM Operation Instruction
5-112
API Mnemonic Operands Function
131 D COS P Cosine
Controllers
20PM 10PM
Bit Devices Word Devices Program Steps
Type
OP
X Y M S F H KnX KnY KnM KnS T C D V Z
S * *
D *
DCOS, DCOSP: 6 steps
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. F refers to floating point input. Be sure to add a decimal point when using it.
3. Only 32-bit instructions DCOS and DCOSP are applicable.
4. The value in
S
can be set as radian or degree by Radian/Degree selection flag
M1760/M1920 = OFF indicates radian mode. RAD = degree
×π
/180.
M1760/M1920 = ON indicates degree mode. Degree range: 0
°≦
degree
＜
360
°
5. If the result = 0, zero flag will be ON.
6. Flags:
OX O100
Zero flag M1808 M1968
Radian/Degree flag M1760 M1920
7. 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)
Program Example 1:
Radian/degree selection flag = OFF indicates 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
X0
DCOS D0 D10
Degree/radian
flag
D 1 D 0
D 1 D 10
COS value
binary floating point
RAD value (Degree 180)
binary floating point
/
X
π
Program Example 2:
Radian/degree selection flag = ON indicates degree mode. When X0 = ON, DCOS instruction performs cosine