Analysis And Service Functions; Recording Operating Hours; Individual Fault Recognition At Ecg Level; Fault Analysis At Group Level - Theben DALI gateway S64 KNX User Manual

7 Analysis and service functions

7.1

Recording operating hours

The DALI gateway KNX allows for the operating hours (burning time) of each group to be
individually recorded. Internal recording is accurate to the second. The value is available
externally in an hourly unit with the internal value in seconds always being rounded. (e.g. 7199
seconds  1 h, 7201 seconds  2h) The recording of operating hours is independent of the
dim value. This means any light value > 0 % contributes to an increase in the operating hours of
a group. The counter can be reset (when a lamp is changed). To reset the counter, the value 1 is
written on the communication object "reset operating hours".
A maximum value can be individually configured for each group (life span), which activates an
alarm object on the KNX bus. This information can be used for maintenance purposes.
7.2

Individual fault recognition at ECG level

A major advantage of DALI technology is the individual recognition of faulty lights or ECGs. The
DALI gateway KNX supports this function.
For the analysis, the DALI gateway KNX scans all connected ECGs periodically for ECG and light
errors. The scanning cycles can be configured. If the cycle is 1 second (standard setting), and 64
ECGs are connected, the complete process of scanning for ECG and light errors takes 128
seconds (1 second per ECG and type of error). It can therefore take up to about 2 minutes
before a fault that has occurred is recognised. For each ECG a communication object is available
to send the information to the KNX bus (1Bit or 1 Byte object). The error information is also
available on the DCA in the ETS.
The fault status of all individual ECGs and lights can also be queried via a special error status
object (object number 300, see communication object description below).
7.3

Fault analysis at group level

If ECGs are merged into groups, numerous group-specific error data is available in addition to
the still available individual ECG data. For this purpose, three different communication objects
are available for each group. In addition to general information such as whether there is an
error within a group and of what type, the complete number of faulty devices within the group
and the error rate can be listed via a communication object. An alarm object is sent when a
certain error rate is exceeded. A complex object with a summary of the data further adds to the
analysis options.
For details of group-specific communication objects, please see the communication objects
description below.
Manual DALI gateway S64 KNX/S128 KNX
Analysis and service functions
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