Lenze DDS v2.3 - Manual (Page 298)

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IEC 61131-3 Standard functions
14-6
l
DDS EN 2.3
14.2.6 SIN
Returns the sine of a number in radians
Examples
IL
ST FBD
LD 0.5
SIN
ST q (* q=0.4794255 *) q:=SIN(0.5);
14.2.7 COS
Returns the cosine of a number in radians
Examples
IL
ST FBD
LD 0.5
COS
ST q (* q=0.8775826 *) q:=COS(0.5);
14.2.8 TAN
Returns the tangent of a number in radians
Examples
IL
ST FBD
LD 0.5
TAN
ST q (* q=0.5463024 *) q:=TAN(0.5);
14.2.9 ASIN
Returns the arc sine (inversion of sine) of a number in radians
Examples
IL
ST FBD
LD 0.5
ASIN
ST q (* q=0.5235988 *) q:=ASIN(0.5);
14.2.10 ACOS
Returns the arc cosine (inversion of cosine) of a number in radians
Examples
IL
ST FBD
LD 0.5
ACOS
ST q (* q=1.047198 *) q:=ACOS(0.5);
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