Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 502)

L-force | PLC Designer
IEC Operators and additional norm extending functions
500 DMS 3.2 EN 02/2011 TD29

9.10.8 TAN
PLC Designer IEC operator: Returns the tangent of a number. The value is calculated in
arch minutes. IN can be type BYTE, WORD, DWORD, INT, DINT, REAL, SINT, USINT,
UINT, UDINT, OUT must be type REAL.
Example in IL:
LD 0.5
TAN
ST q (* Result is 0.546302 *)
Example in ST:
q:=TAN(0.5);
Example in FBD:
9.10.9 ASIN
PLC Designer IEC operator: Returns the arc sine (inverse function of sine) of a number. .
IN can be type BYTE, WORD, DWORD, INT, DINT, REAL, SINT, USINT, UINT, UDINT, OUT
must be type REAL.
Example in IL:
LD 0.5
ASIN
ST q (* Result is 0.523599 *)
Example in ST:
q:=ASIN(0.5);
Example in FBD: