Application - ABB REL650 Applications Manual

Section 16
Station communication
16.5
466

Application

Parallel redundancy protocol status (PRPSTATUS) is used to supervise and assure
redundant Ethernet communication over two channels. This will secure data transfer even
though one communication channel might not be available for some reason.
PRPSTATUS provides redundant communication over the station bus running IEC
61850-8-1 protocol. The redundant communication uses port L1_A and L1_B on the
COM3 module.
Station Control System
Data
Switch A
1 2
Data
A
IEC13000003 V1 EN
Figure 220: Redundant station bus
Redundancy
Supervision
Duo
Data
Switch B
1 2
Data
B
IED
COM03
PRPSTATUS
IEC13000003-1-en.vsd
1MRK 506 334-UUS A
Application manual