IEC 61850
HSR
SM
V
tr
af
fi
c
Backup 1588
master clock
Managed HSR
Ethernet
switch
Primary
IEEE 1588 v2
master clock
Secondary
IEEE 1588 v2
master clock
(optional)
Managed HSR
Ethernet
switch
Figure 10: Example network topology with process bus, redundancy and IEEE 1588
v2 time synchronization
The process bus is available for all merging units. See the IEC 61850 engineering
guide for detailed system requirements and configuration details.
2.7.3
Secure communication
The merging unit supports secure communication for WHMI and file transfer
protocol. If the
Secure Communication parameter is activated, protocols require
TLS based encryption method support from the clients. In this case WHMI must be
connected from a Web browser using the HTTPS protocol and in case of file transfer
the client must use FTPS.
1MRS758580 C
SMU615 overview
SMU615
Application Manual
29
Summary of Contents for Relion SMU615
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