Siemens SINUMERIK 840DE sl Commissioning Manual page 832

Generating user dialogs
1.10 Predefined functions
Function name
Tangent
ARCSIN
ARCOS
114
Description
The function calculates the tangent of the value transferred in degrees.
Parameter:
double - angle
Syntax:
<function name="tan" return="<double val>"> double
</function>
Example:
<let name= "tan_val" type="double"></let>
<function name="tan" return="tan_val"> 20.0 </
function>
The function calculates the arcsine of the value transferred in degrees.
Parameter:
double - x in the range from -PI/2 to +PI/2
Syntax:
<function name="arcsin" return="<double val>">
double </function>
Example:
<let name= "arcsin_val" type="double"></let>
<function name="arcsin" return="arcsin_val"> 20.0
</function>
The function calculates the arccosine of the value transferred in de‐
grees.
Parameter:
double - x in the range from -PI/2 to +PI/2
Syntax:
<function name="arcos" return="<double val>">
double </function>
Example:
<let name= "arccos_val" type="double"></let>
<function name="arccos" return="arccos_val"> 20.0
</function>
Programming Manual, 12/2017, 6FC5397-1DP40-6BA1
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