Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 1059)

L-force | PLC Designer
Programming Reference
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DMS 4.1 EN 03/2011 TD29 1057
Example in FBD:
MIN
IEC Selection Operator: Minimum function. Returns the lesser of the two values.
OUT := MIN(IN0, IN1)
IN0, IN1 and OUT can be any type of variable.
Example in IL: ( Result is 30 )
Example in ST:
Var1:=MIN(90,30); (* Result is 30 *);
Var1:=MIN(MIN(90,30),40); (* Result is 30 *);
Example in FBD:
LIMIT
IEC Selection Operator: Limiting
OUT := LIMIT(Min, IN, Max) means:
OUT := MIN (MAX (IN, Min), Max)
Max is the upper and Min the lower limit for the result. Should the value IN exceed the
upper limit Max, LIMIT will return Max. Should IN fall below Min, the result will be Min.
IN and OUT can be any type of variable.