ABB S800 I/O Manual page 80

Communication Module Replacement
Module Type - Settings
Switch setting for PROFIBUS
address
CI830
SERVICE
FCI
CI830
PROFIBUS
L+
L-
SA
SB
CI840/
TB840
TU846/
TU847
80
Table 18. Replacement of S800 I/O Modules
F R
P
RX TX
PROFIBUS
STN. ADDR. Station Addre
5
4 6
3 7
x 10
2 8 Switches
1 9
0
5
4 6
3 7
x 1
2 8
1 9
0
Tx Rx
Tx
Rx
Cluster Addre
Switches
Comments
Cannot be replaced with power applied.
Needs space to the left in order to be removed.
In normal operation mode, before a CI830 is
replaced, the supply to the S800 I/O is to be
switched off. Power connections can be removed
by pulling the header terminals out of the unit.
Optical ModuleBus Port TB810/TB811 cannot be
removed with power applied.
Fieldbus connections can be removed by pulling
the D-way connector out of the unit.
If the last CI830 on a PROFIBUS segment
supplies an active termination in the cable
connector, disconnection of the power
supply or the PROFIBUS cable to CI830
can not be done without disrupting the bus.
Can be replaced with power applied.
In redundant configuration, one CI840/TB840 can
be replaced without any affects on channel in an
I/O station.
If a TB842 connected to a TU846/TU847 shall be
changed in a running system, TB806/TB846 has to
be disconnected from TU846/TU847 first.
If the last CI840 on a PROFIBUS segment
supplies an active termination in the cable
connector, disconnection of the power
supply or the PROFIBUS cable to CI840
cannot be done without disrupting the bus.
Also, CI840 cannot be removed.
Needs space to the left in order to be removed.
Cannot be replaced with power applied.
Section 5 Maintenance
3BSE020926-600