Communication Object; Channel 1 - ABB i-bus BDB/S 1.1 Product Manual

®
ABB i-bus EIB / KNX
3.3

Communication object

3.3.1

Channel 1

© 2006 ABB STOTZ-KONTAKT GmbH
Commissioning
Fig. 10: Communication objects channel 1, 0...6
No. Function
0 Received
Receives the current 1-bit switching telegram of the channel to be recorded, e.g. from a
switching actuator.
If the switch positions are recalled cyclically, ensure that on the recalling device, e.g. a switch
actuator channel, the R flag is set in the communication object to be recalled. Otherwise the
Data Logging Unit can not recall the switch position.
1 Number
Contains the current number (= counter value) of operating hours
With a bus voltage failure the current counter value is saved in the BDB/S.
Via the parameter Overwrite saved counter values with download and the option yes a further
parameter Operating hours new counter value after download opens.
A new counter value can be defined with this.
The counter value can also be modified via the bus.
Before the current values can be changed, the communication object "Enable delete/overwrite
- System" must receive a "1".
2 Change/read
The operating hours start or limit value can be changed via the bus.
The communication object is always visible.
On bus voltage failure with modified operating hours start or limit value is saved in BDB/S.
Only after a renewed download of the application program is the start or limit value – if set –
is overwritten.
Before the start or limit values are changed "1" must be received on the communications
object "Enable delete/overwrite - System".
3 Alarm
Sends a "1", as soon as the set operating hours limit value is reached when counting upwards.
When counting downwards a "1" is sent as soon as zero is reached.
As soon as the communication object 248 Send all operating data – System receives a "1",
the communication object Channel 1 operating hours – Alarm is sent.
Telegram value "1" = limit value reached
Telegram value "0" = limit value not reached
Table 3: Communication objects channel 1, 0...3
Object name Data type
Channel 1 switch EIS 1, 1-Bit
position
DTP 1.001
Channel 1 operating EIS 11, 4 bytes
hours
DTP 12.001
Channel 1 operating EIS 11, 4 bytes
hours start/limit value
DTP 12.001
Channel 1 operating EIS 1, 1-Bit
hours
DTP 1.001
Flags
C, W, T, U
C, R, W, T
C, R, W, T
C, R, T
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