interoperates with other IEC 61850-compliant IEDs, and systems and simultaneously
reports events to five different clients on the IEC 61850 station bus.
The Denial of Service functions DOSLAN1 and DOSFRNT are included to limit the
inbound network traffic. The communication can thus never compromise the primary
functionality of the IED.
The event system has a rate limiter to reduce CPU load. The event channel has a quota of
10 events/second after the initial 30 events/second. If the quota is exceeded the event
channel transmission is blocked until the event changes is below the quota, no event is lost.
All communication connectors, except for the front port connector, are placed on
integrated communication modules. The IED is connected to Ethernet-based
communication systems via the fibre-optic multimode LC connector(s) (100BASE-FX).
The IED supports SNTP and IRIG-B time synchronization methods with a time-stamping
accuracy of ±1 ms.
• Ethernet based: SNTP and DNP3
• With time synchronization wiring: IRIG-B
The IED supports IEC 60870-5-103 time synchronization methods with a time stamping
accuracy of ±5 ms.
14.2.3 Communication interfaces and protocols
Table 459: Supported station communication interfaces and protocols
Protocol
Ethernet Serial
100BASE-FX LC Glass fibre (ST connector) EIA-485
IEC 61850–8–1 ● - -
DNP3 ● ● ●
IEC 60870-5-103 - ● ●
● = Supported
Section 14 1MRK 511 287-UUS A
Station communication
562
Technical manual
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