Chapter 6 - Connection to PROFIBUS
PROFIBUS Tester BC-700-PB - User Manual
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6
Connection to PROFIBUS
6.1
General information
6.1.1
Possible side effects when testing a live bus
Test tool side effects
When you connect a test tool, side effects on the system under test are
generally unavoidable. If the PROFIBUS is already disturbed to a certain
degree or if Simatic Diagnostic Repeaters are used, the operation of the
PROFIBUS might nevertheless be affected occasionally. Compliance with
the connection notes is mandatory.
6.1.2
Connection types
You can connect a bus station to a PROFIBUS network either
using connectors such as
o
, most of which have an integrated terminating resistor and,
optionally, an additional service socket
o
for environments requiring increased IP ratings
o
Special vendor-specific hybrid connectors; they are used in combination with
special cables to supply power via the bus
or
using terminals for direct connection.
Due to the daisy-chain topology, the connection points of the bus stations are the typical
points for connecting the test tool.
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