Section 20 Ethernet-based communication
20.1 Access point
20.1.1 Application
The access points are used to connect the IED to the communication buses (like the station
bus) that use communication protocols. The access point can be used for single and
redundant data communication. The access points are also used for communication with
the merging units and for time synchronization using Precision Time Protocol (PTP).
20.1.2 Setting guidelines
The physical ports allocated to access points 2–6 have to be added in the
hardware tool in PCM600 before the access points can be configured. The
factory setting only includes the physical ports allocated to the front port
and access point 1.
The settings for the access points are configured using the Ethernet configuration tool
(ECT) in PCM600.
The access point is activated if the Operation checkbox is checked for the respective
access point and a partial or common write to IED is performed.
To increase security, it is recommended to deactivate the access point
when it is not in use.
Redundancy and PTP cannot be set for the front port (Access point 0) as redundant
communication and PTP are only available for the rear optical Ethernet ports.
Subnetwork shows the SCL subnetwork to which the access point is connected. This
column shows the SCL subnetworks available in the PCM600 project. SCL subnetworks
can be created/deleted in the Subnetworks tab of IEC 61850 Configuration tool in
PCM600.
When saving the ECT configuration after selecting a subnetwork, ECT
creates the access point in the SCL model. Unselecting the subnetwork
removes the access point from the SCL model. This column is editable for
1MRK 506 369-UUS - Section 20
Ethernet-based communication
Line distance protection REL670 2.2 ANSI 855
Application manual
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