The IED will restart after confirmation. Menu items LANAB:1 and
LANCD:1 are hidden in local HMI after restart but are visible in PST
where the values for parameter Mode is set to Duo.
10.3 Verifying the communication
To verify that the communication is working a test/analyzing tool, for example
ITT600, can be used.
Verifying redundant IEC 61850-8-1 communication
Ensure that the IED receives IEC 61850-8-1 data on both port AB and CD. Browse in
the local HMI to Main menu/Diagnostics/Communication/Redundant PRP and
check that both signals LAN-A-STATUS and LAN-B-STATUS are shown as Ok.
Remove the optical connection to one of the ports AB or CD. Verify that either signal
LAN-A-STATUS or LAN-B-STATUS (depending on which connection that was
removed) are shown as Error and the that other signal is shown as Ok. Be sure to re-
connect the removed connection after completed verification.
Section 10 1MRK502053-UEN B
Establishing connection and verifying the IEC 61850 communication
94 Generator protection REG670 2.0 IEC
Commissioning manual
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