As part of its modernization initiative, Landsvirkjun wanted to update its
control system. Their legacy Harris system was replaced by the Eterra SCADA
system from AREVA. As a result, communication with the Burfell power station
also had to migrate from Harris-5000/6000to IEC 60870-5-101 (for more details please go
to Burfell) .
Connection to the automation devices is still realized via redundant bus
systems running on the proprietary XMAT protocol based on Sinec-H1.
Protocol converters, too, are laid out redundantly (switching over Channel
Switch CS) and operate in hot/standby
An ISDN router enables remote converter control.