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

3. Instruction Set

API

133

Mnemonic			Operands	Function
D	ASIN	P		Arc Sine

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	DASIN, DASINP: 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 (binary floating value) D: Operation result

Explanations:

1.ASIN instruction performs arc sine operation on S and stores the result in D

2.ASIN value = SIN-1

3.See the figure below for the relation between input S and the result:

R

S:Input (SIN value)

R:Result (ASIN value)

2

			S
-1,0	0	1,0

-2

4.If operation result in D is 0, Zero flag M1020 = ON.

5.The decimal value of the SIN value designated by S should be within -1.0 ~ +1.0. If the value exceeds the range, M1067 and M1068 will be ON and instruction will be disabled.

Program Example:

When X0 = ON, DASIN instruction performs arc sine operation on the binary floating value in (D1, D0) and stores the ASIN value in (D11, D10) in binary floating format..

X0

DASIN D0 D10

3 - 3 2 1