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Siemens
Standard application AHU
CE1P3977en_02
Building Technologies
Hardware overview
01.02.2010
No Room unit parameter/description
006
geographic address room (1.X.1).
Numbering range for room: 1...14.
Default value set to 1.
007
geographic address sub zone (RW)(1.1.X).
Numbering range for sub zone: 1...15.
This value must be changed from default 1 to 2 for two room units on the
same controller.
008
¨
Network error recognition on/off (RW).
Parameter to turn on/off the network error recognition function, with
0 = off (P__ is displayed when no data frames are received in the last 70
seconds and the function is turned on).
1 = On.
NET
flashes, when no data frames are received over the past 70 seconds
and the function is turned on.
Timeout
Network error recognition during parameter initialization: 30
seconds.
009
Automatic assignment of individual addresses on/off (RW).
0 = The room unit uses the unit devices as a fixed assigned individual ad-
dress.
1 = Automatic addressing on the process bus
The room unit changes as required (e.g. for address conflict on the
process bus) the individual address via DAA mechanism (
D
etect
A
nd
A
void mechanism)
Default value 1 = automatic addressing
When the controller sends an alarm to the room unit, the
•
Alarm is displayed
•
Depending on parameterization, the alarm number, including the grouping, flash-
es, or only the alarm is displayed
A = Alarm switched off,
B = Normal alarm,
C = Warning
Details see
19.6 – Alarm lists
and
9.5 –
Communication room unit
Alarm display
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 32