IEC 61850
HSR
SMV traffic
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 13: Example network topology with process bus, redundancy and IEEE 1588
v2 time synchronization
3.2.5 Secure communication
The protection relay supports secure communication for WHMI and file transfer
protocol using Transport Layer Security protocol. The WHMI must be connected
from a Web browser using the HTTPS protocol. File transfer client must use explicit
FTPS.
3.2.6 Communication services control
3.2.6.1 Ethernet ports
The protection relay allows the use of a secondary IP address for the station ports
on the communication modules COM1001...COM1003. This secondary IP network is
assigned to a single Ethernet port and can be used to make separate networks
for different communication protocols or, for example, a separate service network
for configuration purposes. Multicast station/bus communication, such as IEC
61850-9-2 LE sampled values and GOOSE, is only supported on the Network 1
interface. The parameters for setting the secondary IP network are located under
Configuration> Communication> Ethernet> Network 2 address.
1MRS759142 F
Basic functions
REX640
Technical Manual
85
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