Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 1075)

L-force | PLC Designer
Programming Reference
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DMS 4.1 EN 03/2011 TD29 1073
16.3.10 Numeric Functions
The following numeric IEC operators are available:
ABS, SQRT, LN, LOG, EXP, SIN, COS, TAN, ASIN, ACOS, ATAN, EXPT
ABS
IEC Operator: Returns the absolute value of a number. ABS(-2) returns 2.
In- and output can be of any numeric basic data type.
Example in IL: ( Result in i is 2 )
Example in ST:
i:=ABS(-2);
Example in FBD:
SQRT
IEC Operator: Returns the square root of a number.
The input variable can be of any numeric basic data type, the output variable must be
type REAL or LREAL.
Example in IL: ( Result in q is 4 )
Example in ST:
q:=SQRT(16);
Example in FBD: