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2.1 Design of the Entire System
Figure 1: System overview
The Modbus controller EM12D-TMB is the centre of the ControlPlex
®
system. It collects all information of the
REX12D and REX22D electronic circuit protectors and forwards it to the superordinate Modbus server and thus to
the superordinate control unit.
The Modbus interface to the superimposed control unit is realised with a 3-wire cable. It allows connection of the
®
ControlPlex
system to the Modbus server, thus enabling display and analysis of the individual measuring values
as well as diagnosis and control of the individual electronic circuit protectors. The user has unrestricted access to
the safety-relevant functions in the event of a system disruption. Any occurring failures will be detected quickly and
can be remedied without delay. The ControlPlex
®
system effectively reduces system downtimes and significantly
increases the productivity.
6
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