Chapter 4 - Display and control in stand-alone mode
Copyright 2016 Softing Industrial Automation GmbH
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Submenu(s)
(> Submenu function)
Trend logging is used for detecting rare or sporadic
faults over a prolonged period of time. The function
monitors both the bus physics and critical events in the
bus communication. The test data is stored in the tool
and can be imported by the PROFIBUS Diagnostics Suite
software application. The tool displays the duration of
the running trend test.
After completion of the test, a tabular overview is
displayed which informs you about existing and missing
quick tests respectively. The Trend Test runs until it is
manually stopped, ends when the power supply is
interrupted or when the maximum logging time of 99
hours and 59 minutes is reached.
You can easily create networks, segments and test locations in
PROFIBUS Diagnostics Suite and then load this data onto your
test tool. For more information refer to the onlinehelp of
PROFIBUS Diagnostics Suite in section "Prepare stand-alone
tests".
Select network - The test tool stores the test results
that are associated with a real PROFIBUS network in a
separate file folder for that network. Three configurable
directories are available. The radio button shows which
network is currently selected.
Each network contains at least one physical segment
and test location.
Segment list - The signals of stations located behind a
repeater are regenerated and transmitted by the
repeater. Therefore, all stations behind the same
repeater will have identical test results. When using
repeaters, you will thus have to test each segment
separately.
One test location belongs exclusively to one segment.
Networks > Segment List
> Edit Segment
Assign test locations to segments: Those test locations
are particularly important which are located within the
currently tested physical segment. We recommend
performing at least two signal quality tests per physical
segment (at both ends of the corresponding segment).
Manage test locations: Particularly when testing signal
quality, the test location has a major influence on the
test result.
To find these faults, it is recommended to measure the
signal quality at different locations on the bus, at least
at both line ends. If a PROFIBUS network comprises
multiple segments connected through repeaters, you
have to measure each segment separately.
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