ABB i-bus
®
KNX
Commissioning
© 2008 ABB STOTZ-KONTAKT GmbH
163
3.3
Communication objects
Note
As standard the write flag (with the exception of 1 bit communication
objects) are deleted with the object values. Thus the object value cannot
be changed via the bus. If this function is required, the Write flag must be
set in the ETS.
The object value is overwritten with the parameterised value after bus
voltage recovery.
3.3.1
General
No.
Function
Object name
Data type
Flags
0
In operation
System
EIS 1, 1 bit
DPT 1.002
C, T
The communication object is enabled if in parameter window
General
the setting
Sent
“In operation“ object
is selected with the option
send value 0 cyclically
or
send value 1
cyclically
.
In order to regularly monitor the presence of the Room Master on the ABB i-bus
®
, a monitoring
telegram can be sent cyclically on the bus.
As long as the communication object is activated it sends an
in operation
telegram.
Telegram value:
1 = system in operation with option
send value 1 cyclically
0 = system in operation with option
send value 0 cyclically
1
Request status values
General
EIS 1, 1 bit
DPT 1.017
C, W
The communication object is enabled if in parameter window
General
the parameter
Enable
communication object "Request status values" 1 bit
has been selected with option
yes
.
If a telegram with the value x (x = 0; 1; 0 or 1) is received in the communication object,
all status objects are sent on the bus, as long as these have not been programmed with
the option
after a change
or
after request
or
after a change or request
.
The following function results for the value x = 1:
Telegram value:
1 = all status messages are sent.
0 = nothing happens.
2…9
Not assigned.