Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Cos

3. Instruction Set

API		Mnemonic			Operands	Function
131	D		COS	P		Cosine

Controllers

ES2/EX2 SS2 SA2 SX2

SE

Type	Bit Devices					Word devices					Program Steps
OP	X	Y	M	S	K	H KnX KnY KnM KnS T	C	D	E	F	DCOS, DCOSP: 9 steps
S					*	*		*
D								*
						PULSE			16-bit		32-bit

ES2/EX2	SS2	SA2	SX2	ES2/EX2	SS2	SA2	SX2	ES2/EX2	SS2	SA2	SX2
		SE				SE				SE

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: Radian
					1		R: Result (COS value)
-2	-	3		- 2	0		3	S
			-2			2		2
		2					2
					-1

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	RAD value(degree x π/180)
			binary floating point
	D11	D10	COS value
			binary floating point

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