HYDAC CMU 1000 - Manual (Page 98)

Condition Monitoring Unit CMU 1000 Page 98
Revised 17.12.2009 HYDAC ELECTRONIC GMBH Mat.-No.: 669749
7.6.3 Greater than
The Greater than function compares two numerical input values for
equivalence and outputs a "1" at its Boolean output if value x
1
is
greater than x
2
, otherwise a "0".
In view of the fact that numerical values are presented on computers
as floating point numbers with finite precision, it is difficult to make
decisions in border ranges. (See the explanation in Chapter 7.6.1,
Equals
function). This is however usually irrelevant in everyday
usage, because the imprecision is not to be found before the 8th
significant decimal place.
When however it is important that a precise decision be made for a
border range, then you can install the Rounding function upstream
(see Chap. 7.3.8).
Inputs: x
1
: (Numerical)
x
2
: (Numerical)
Outputs: y: (Boolean)
Parameters: -
7.6.4 Greater than or Equal to
The Greater than or equal to function compares two numerical input
values for equivalence and outputs a "1" at its Boolean output if
value x
1
is greater than or equal to x
2
, otherwise a "0".
For more on the subject of precision, please note the explanations in
the Greater than function (see Chapter 7.6.3).
Inputs: x
1
: (Numerical)
x
2
: (Numerical)
Outputs: y: (Boolean)
Parameters: -
7.6.5 Less than
The Less than function compares two numerical input values for
equivalence and outputs a "1" at its Boolean output if value x
1
is less
than x
2
, otherwise a "0".
For more on the subject of precision, please note the explanations in
the Greater than function (see Chapter 7.6.3).
Inputs: x
1
: (Numerical)
x
2
: (Numerical)
Outputs: y: (Boolean)
Parameters: -