Profibus Connections - ABB S800 I/O Manual

Section 3 Configuration
Figure 15. TU846/TU847 Front Panel

PROFIBUS Connections

The FCI connects to the PROFIBUS via the 9 pin D-way connector on the front of
TU846/TU847. This allows the FCI (if not the last one at the PROFIBUS segment)
to be removed from the PROFIBUS without disconnecting the other nodes of the
fieldbus. If CI840 is the last module at a PROFIBUS segment and supplies an active
termination in the cable connector, disconnection of the power supply or the
PROFIBUS cable from CI840 can not be done without disrupting the bus, nor can
the CI840 be removed.
3BSE020926-600
CI840
PROFIBUS Connections
CI840
Address
Switch #1
Address
Switch #2
37