Busch-Jaeger Busch-ComfortTouch, Product Manual

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20.3.18 Area tester (external) module details
20.3.18.1 Behaviour
The module checks whether the incoming comparison value on
Input 0
lies outside two limit
values. The limit values are defined by the
Input 1
and the
Input 2
. If the comparison value is
outside the limit values, the result 1 (logical "true") is output on
Output 0
. Otherwise the output
value is 0 (logical "false").
Output 1
always outputs the result inverted. If the limit values are
invalidly configured (e.g. upper limit less than lower limit) the result 1 (logical "true") is output
on
Output 2
.
If necessary, incoming values are converted into the internal data type of the module before the
comparison (see conversion table below). Thus, observe the selection of a correct internal data
type!
The comparison is dependent on the internal data type of the module and is executed in the fol-
lowing way:
Internal data
type
Comparison rule Example
Number Nummer comparison 3 ≤ 9 ≤ 7
→
false
Time Time comparison 15:30 ≤ 21:10 ≤ 19:00
→
false
Date Date comparison
1.1.1970 ≤ 29.12.2009 ≤
17.5.2009
→
false
String
String length compari-
son
"priOn" ≤ "" ≤ "ComfortPanel" →
false
20.3.18.2 Extended settings

Via the
Internal data type
parameter, you can specify the internal data type of
the module.

Via the
Only send with change
parameter, you can specify whether an output
value shall only be sent if the result of the calculation is different to the previ-
ously calculated result.
20.3.18.3 Conversion table