Ethernet-Based Communication; Access Point; Application; Setting Guidelines - Hitachi Relion 670 Series Applications Manual

1MRK511407-UUS Rev. N
Section 18
18.1

Access point

18.1.1

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).
18.1.2

Setting guidelines

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.
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.
The IP address can be set in IP address. ECT validates the value, the access points have to be on
separate subnetworks.
The subnetwork mask can be set in Subnet mask. This field will be updated to the SCL model based on
the Subnetwork selection.
To select which communication protocols can be run on the respective access points, check or uncheck
the check box for the relevant protocol. The protocols are not activated/deactivated in ECT, only filtered
Phasor measurement unit RES670
Application manual

Ethernet-based communication

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 front port might or might not be available depending on the order type of the display. In
the Ethernet configuration, the front port setting will still be available.
To increase security, it is recommended to deactivate the access point when it is not in use.
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 IEC 61850 Ed2 IEDs and not editable for IEC 61850 Ed1
IEDs because in IEC 61850 Ed1 only one access point can be modelled in SCL.
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Section 18
Ethernet-based communication
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