ABB RELION 650 Series Commissioning Manual page 56

Section 8
Establishing connection and verifying the IEC 61850 communication
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
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
Ok . Be sure to re-connect the removed connection after completed verification.
50
Ok . Remove the optical connection to one of
Error and the that other signal is shown as
1MRK 506 366-UEN A
Commissioning manual