Campbell CR5000 Spécifications télécharger pdf (Page 204)

Section 8. Processing and Math Instructions

8-32

Tan Function Example

The example uses Tan to calculate the tangent of an angle from a Volt(1) input.

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

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

Degrees = Volt(1) 'Get user input.

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

Ans = Tan(Radians) ‘The Tangent of Degrees.

TANH (Source)

The TANH function returns the hyperbolic tangent of an expression or value.

Syntax

x = TANH (Source)

Remarks

The TANH function returns the hyperbolic tangent [ tanh(x) = sinh(x)/cosh(h) ]

for the value defined in Source.

TANH Function Example

The example uses TANH to calculate the hyperbolic tangent of a voltage input.

Public Volt1, Ans 'Declare variables.

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

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

Ans = TANH( Volt1 ) 'The Hyperbolic Tangent of Volt1.

XOR

The XOR function is used to perform a logical exclusion on two expressions.

Syntax

result = expr1 XOR expr2

Remarks

If only one of the expressions evaluates True, result is True. If either

expression is a Null, result is also a Null. When neither expression is a Null,

result is determined according to the following table:

If expr1 is And expr2 is The result is

True True False

True False True

False True True

False False False

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Campbell CR5000 Spécifications Page 204