Busch-Jaeger Busch-ComfortTouch, Product Manual

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20.3.26 Root function details
20.3.26.1 Behaviour
The module calculates the nth root of the input value and outputs it as result on the
Output 0
.
If a negative input value is present on the input, the value 1 (logical "true") is output on the
Out-
put 1
. In this case, no value is output on the
Output 0
.
The internal data type of this module is Number. If necessary, incoming values are converted
into the internal data type before the calculation (see conversion table below).
20.3.26.2 Extended settings

You can specify to which exponent the root shall be calculated (e.g. 2 for square
root) using the
Root exponent
parameter.

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.
20.3.26.3 Conversion table
Boolean
(converted) Number
(converted) DPTTime
(converted) DPTDate
(converted) String
(converted)
Boolean ---
true
false
→
→
1
0 every va-
lue --
- Current
time Current
date true
false
→
→
"1"
"0"
Number
0
≠ 0
→
→
true
false
---
every va-
lue
(as millise-
cond
since
1.1.1970)
→
Time of
day, if
possible;
otherwise
00:00
Hours
Date, if
possible;
otherwise
1.1.1970
Text analo-
gue
to number
DPTTime true
Milliseconds
since
1.1.1970
--- 1.1.1970
Text analo-
gue
to time of
day