Lenze DDS v2.3 - Manual (Page 279)

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IEC 61131-3 Operators
12-9
l
DDS EN 2.3
12.4.3 MIN
Minimum function
Returns the lesser of two values.
OUT := MIN(IN0, IN1)
IN0
,
IN1
and
OUT
can be of any type.
Examples
IL
ST FBD
LD 90
MIN 30
MIN 40
MIN 77
ST
Var1 (* Var1 = 30 *)
12.4.4 LIMIT
Limitation
OUT := LIMIT(Min, IN, Max)
means:
OUT := MIN (MAX (IN, Min), Max)
Max is the upper, Min the lower limit for the result.
•
If the value
IN
exceeds the upper limit
Max
, then LIMIT returns
Max
.
•
If IN falls below Min , the result is Min .
IN and OUT can be of any type.
Examples
IL
ST FBD
LD 90
LIMIT 30,80
ST
Var1 (* Var1 = 80 *)
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