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"DALI Gateway C00Cx2" software
Functional description
Seite 37 von 130
Setting the feedback for the DALI error status
The ETS parameterization allows to define whether the error status feedback is to be transmitted
actively to the KNX/EIB (telegram transmission when status has changed) or passively (telegram
transmission only in case of a trigger request).
Set the “DALI error status feedback ?” parameter on the “General” parameter page to “Yes, feedback
object is an active message object”.
As soon as a change of the status of a connected DALI device has been detected during the
periodical status request, a corresponding feedback telegram will be transmitted actively to the
KNX/EIB. The feedback telegram relating to a DALI device will be transmitted only once after the
detection and the elimination of the error.
• An internally stored error will get lost in case of a mains voltage failure. Thus, no more feedback will
be transmitted once an error has been eliminated by switching off and on again the mains voltage (at
the DALI Gateway as well).
• The DALI Gateway initializes after the programming of the ETS or after the mains voltage has been
switched on. If a DALI error has been detected the Gateway will proceed to transmit the
corresponding feedback telegram. The “DALI error status” will not be automatically transmitted to the
bus after the return of bus voltage (mains voltage at the Gateway is permanently switched on during
bus failure).
Set the “DALI error status feedback ?” parameter on the “General” parameter page to “Yes, feedback
object is a passive status object”.
In case of a detected error there will be no automatic telegram transmission to the KNX/EIB. In order
to determine the error status of a DALI device, the “DALI error status” communication object 210 has
to be externally written by a 1-byte trigger telegram (ValueWrite). The bits 0...5 of the trigger
telegram have to include the number of the DALI device whose status has been requested (cf. Table
1). The bits 6 and 7 have to be set to “1”. Otherwise the trigger telegram will be ignored.
The DALI Gateway will immediately respond to a received and valid trigger telegram by transmitting
the current status once.
• The Gateway will respond with deleted error bits to trigger requests for device numbers that are not
available in the DALI system.
• The DALI Gateway will respond to a Read telegram (ValueRead) that has been transmitted to the
“DALI error status” communication object 210 by sending the object value that was updated last
(ValueResponse). Thus, DALI devices cannot be uniquely addressed.
Set the "DALI error status feedback ?" parameter on the "General" parameter page to "No".
This will deactivate the DALI error status. The communication object is now hidden.
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