Siemens as-interface ANALYSER 3RK1 904-3AB01, Manual, Page: 19 / 46

AS-Interface Analyser Functions of the Analyser
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5.3.6 Online Statistics without Notebook
The online statistics is available without notebook also and therefore, it is suitable
for long-term control of the network.
If the analyser is started without communication with the notebook the 3 LEDs at
the analyser have a changed meaning: They indicate the accumulated errors in
the net in terms of the overview. As long as all slaves work perfectly the power-
LED lights "green"; if it should be warned for one or more slaves the second LED
shines "yellow". If the net is affected by more massive disturbances the test LED
lights "red". Operating without a notebook the
LED-traffic light representation at
the analyser shows the status of the net.
The function of the analysers as a "listener" in the AS-Interface net-
work which takes all information out of the telegrams within the net-
work has an important consequence for the representation of the
configuration: It can be only indicated if it was queried at the analy-
ser's run time by the master as well. That happens with AS-Interface
whenever a new slave is taken up to the net. There are four conse-
quences for the user due to that:
• The configuration of the slaves is only indicated if the analyser ob-
served a recording phase. Examples: A system start (switch off the
master or the power supply of the network) after a temporary stop
of the communication ("offline phase" with connected voltage), or
with the resumption of failed slaves (for this slave). If the analyzer
is attached to a network which is already running it can recognize
the ID code only which is queried at regular intervals.
• If a slave drop out its configuration is not queried any longer. The
previous configuration remains indicated up to the next deletion.
Therefore, the drop out of the slave is only recognisable in the
overview or in the advanced statistics. Only with the reuptake of
the slave the configuration is completely called.
• By deleting (button"Clear All") in the overview tab, however, a
failed slave is removed from the tab "Configuration" also, to adapt
the representation to the current network situation.
• If a slave with a wrong configuration is attached after a drop its
wrong configuration is represented. If the master is here in the pro-
tected operating mode it does not take up this slave to data ex-
change. Therefore, no further increase of the data calls can be
recognised in the advanced statistics. The slave appears grey in
the overview. The master reports a configuration error.