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Siemens
RXB (KNX) application library
FNC Description of functions for FC-10, FC-11, FC-12 CM110385en_05
Building Technologies
FAQs
28 Feb 2009
14 FAQs
What happens if the
parameter download process is interrupted
? (power failure,
bus failure etc.)
The parameter set loaded into the controller will be incomplete. The controller will not
start up properly. For example, the fan may run but the valves do not open.
You will have to download the parameters again.
Why does the
controller fail to start after a parameter download
?
(Applies to HandyTool, ACS or ETS)
Parameter download was probably interrupted or exposed to interference. Reload the
controller with the entire parameter set (via HandyTool, ACS or ETS).
Why does the controller not start after adjusting certain parameters?
(applies to HandyTool.)
Parameter download probably interrupted or fault, or controller unloaded via ETS.
A
complete
parameter set must be loaded in the controller
(via HandyTool, ACS or ETS).
Why does the
HandyTool
not display parameter 1 upon quick quit and restart of the
Display mode
?
Communication to the HandyTool
is relatively slow.
You need to wait a brief moment before reopening the Display mode.
Why does the HandyTool
display "uuuu"
?
The
controller
to which the HandyTool is connected
does not support the Test mode
(RXB2x controllers with index A).
Other parameters have been changed so that the selected parameter became irrele-
vant. Just continue your work;. the problem will disappear when the parameterization is
started again.
ACS: Why is
reading back parameters
so slow?
Check to make sure that neither the operating booklet nor the plant image is active.
Both applications cause a lot of bus traffic and thus slow down reading back
parameters.
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