Chapter 6 - Connection to PROFIBUS
PROFIBUS Tester BC-700-PB - User Manual
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6.3.3
Connection via M12 connector
To test a live PROFIBUS, you will need additional service interface of the type BC-M12DP-
PB (see
Adapter set for M12 connection technology
).
Tests on a live PROFIBUS are only allowed on bus segments providing D-sub connection
technology. Only D-sub connectors with service socket can be used as connection points
for the test tool. For this reason, tests can often only be performed at a bus end.
Figure 21: Connection points for the M12 adapter cable
Connect T-fitting between existing cable and 1 meter connection
cable
Always connect one end of the T-fitting to the already existing cable and the
other end to the 1 meter connection cable which is supplied with the service
interface.
Do not screw the T-fitting of the M12 service interface directly onto a slave.
6.4
Master simulator, topology scan and cable test
Master simulator
The master simulator allows checking the bus cabling and the station addresses during
installation and commissioning, when the PLC (master) is not in operation yet. In addition,
you can use this mode to check individual "suspicious" bus stations that have been
disconnected from the bus.
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