37
A051113
Fig. 6.3.5.-1 Example of redundant ring structure
Each REF 542plus is connected by means of a single electrical connection to
the switch of its subsystem. The fibre optics cables are recommended for the
loop.
By means of the ring structure, it is possible to build a redundant
communication system at station level, see Fig. 6.3.6.-1. This is because if
any subsection of the loop fails, the ring structure is changed to a linear
structure automatically. For this reason, the ring structure is particularly
suitable for large plants.
6.3.6. Integration within the switchgear
With reference to Fig. 6.3.6.-1, for the integration of the Ethernet network
inside the switchgear, following basic rules are suggested:
*
To use one or more industrial Ethernet switches placed in empty LV
cubicles of the switch gear (that is the bus-rise panel) or in an additional
empty LV panel. It is preferable to use DIN-rail mounted Ethernet devices.
Also, it is preferred, if the Ethernet switch already has the possibility of
optical uplink, otherwise the media converters (always DIN-rail mounted)
are needed.
*
To connect REF 542plus devices and the switch by means of shielded and
twisted pair cable CAT5 with RJ-45 male connectors.
1MRS755865
Multifunctional Protection and Switchbay
Control Unit
Installation Manual for Web Interface
Installation manual
REF 542plus
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