Line Tests
6
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COMSOFT
4.2 Livelist, SlaveDiag, and Level Detection
To make detections as easy as possible, the generating of the
livelist, the Slave diagnosis and Slave-related transmission
level detection should be effected as well from the bus end.
However, you can also make these from any other available
measuring point within one segment. Here, please observe that
the function of the livelist and of the SlaveDiag also work via
a repeater, segment coupler or optical coupler. The level
detection of a Slave connected via such a device reflects only
the transmission level of the repeater and not the one of the
detected Slaves!
4.3 Measurement at the running bus
The measurements at the running bus are limited to an
indication of the current baud rate, as well as of the general
transmission level quality of the connected Slaves. By this
means, a qualitative evaluation of the level on the bus line is
made. If the test tool shows reflections, the reasons for those
can only be found with the line detection, which implies that
the Master(s) is / are being turned off.
Содержание NetTEST II
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