Limitorque
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Master Station IV EEP-SN4001 FCD LMENIM5010-00-AQ – 03/19
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4.3 Master Station Network Topologies
Figure 4.4 – Modbus Redundant Loop Topology
Additionally, a redundant system can be setup using by using 2 modules. Wire the modules in parallel to the same MOV
RS-485 network as shown below. The redundant modules can be located at any position in the network, but Configure
one module as Active and one as Standby as explained in section 7.2.2 Redundant configuration. The 2 redundant
modules should be connected to the same electrical node of the RS-485 network, and the wiring should adhere to the
Belden wiring specifications regarding max distance between network nodes and repeaters.