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ProfiTrace 2 – User Manual
Topology scan
Will the Topology scan be able to scan through repeaters?
NO, You will not be able to scan through repeaters, but you can clearly see which devices are behind
a repeater, because the cable length between them will be 0 m.
Can the Topology scan create a network drawing of the Profibus PA network?
At the moment it is only RS 485 (DP). For PA it will be very difficult due to junction boxes and Ex
barriers.
How can I exclude participants before starting the Topology Scan?
In the Network Manager you can create segments by adding repeaters to the network and dividing the
devices over the segments. Select one of your segments (set current measuring point) and generate
the topology. You will see that only the devices on the specific segment are visible.
How can I improve my Topology Scan results?
There are cases where the Topology Scan does not work as expected. The topology is calculated with
the help of a generated distortion on the segment and is therefore sensitive to the signal quality of the
segment itself.
To make the Topology Scan more successful, please TURN ON THE TERMINATION SWITCH OF
THE TAP CONNECTOR before starting the Topology Scan. This will add an extra termination to the 2
existing termination resistors at both ends of the segment. Do not forget to turn off the termination
switch when finished.
Note: Because an extra termination is added to the network, this must be done in a stable and
reflection free segment. This reduces possible communication disturbances.
Hardware requirements
Can ProfiCore Ultra overload the bus when it is attached to a running installation?
ProfiCore Ultra is designed and produced around the latest RS 485 technology (1/5 of a standard bus
load). This means the load of ProfiCore Ultra can be ignored on a full bus segment. Spur cables are
also no problem, because the USB cable is the path to the PC (5 meters). ProfiCore Ultra can be
connected very close to the network and the PC can be on a distance from the tap point.
The ProfiCore Ultra has an RS 485 interface for the DP bus. Is it possible to
analyze a PA segment?
YES, if you want to use the ProfiCore Ultra on a PA bus, attach the PA probe to the
ProfiCore Ultra. The PA probe transforms the extracted signals from the PA bus to
information which is fed into the ProfiCore Ultra.
Which USB version is supported?
ProfiTrace 2 supports high speed USB 2.0.
I have a CP5611 card. Can I run ProfiTrace on it?
NO, ProfiTrace works only with the ProfiCore hardware.
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Version 4.3.1 – November 2013
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ProfiTrace2-Manual-EN.docx
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