Campbell CR5000 Spezifikationen PDF herunterladen (Seite 202)

Section 8. Processing and Math Instructions

8-30

The Sin function takes an angle and returns the ratio of two sides of a right

triangle. The ratio is the length of the side opposite the angle divided by the

length of the hypotenuse.

The result lies in the range -1 to 1.

To convert degrees to radians, multiply degrees by π/180. To convert radians

to degrees, multiply radians by 180/π.

Returns the sine of the value in parentheses. The input must be in radians.

Sin Function Example

The example uses Sin to calculate the sine of an angle from a Volt input.

Dim Degrees, Pi, Radians, Ans 'Declare variables.

Pi = 4 * Atn(1) 'Calculate Pi.

Degrees = Volt(1) 'Get input.

Radians = Degrees * (Pi / 180) 'Convert to radians.

Ans = Sin(Radians) ‘The Sine of Degrees.

SinH (Source)

The SINH function returns the hyperbolic sine of an expression or value.

Syntax

x = SINH( Expr )

Remarks

The SINH function returns the hyperbolic sine [ SINH(x) = 0.5( ex - e-x ) ] for

the value contained in the Expr argument.

The example uses SINH to calculate the hyperbolic sine of a voltage input.

Public Volt1, Ans 'Declare variables.

BeginProg

Scan ( 1, min, 3, 0)

VoltDiff(Volt1,1,mV5000,1,True,100,500,1,0)

'Returns voltage on Channel(1) to Volt(1)

Ans = SINH( Volt1 ) 'The Hyperbolic Sine of Volt1.

NextScan

EndProg

Sqr (Source)

Returns the square root of a number.

Syntax

x = Sqr (number)

Remarks

The argument number can be any valid numeric expression that results in a

value greater than or equal to 0.

Returns the square root of the value in parentheses.

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Campbell CR5000 Spezifikationen Seite 202