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R E F 6 1 5 A N S I 5 . 0 F P 1 F E E D E R P R OT E C T I O N A N D C O N T R O L
The relay supports the following high accuracy time
synchronization method with a time-stamping res-
olution of 4 μs required especially in process bus
applications.
• PTP (IEEE 1588) v2 with Power Profile
The IEEE 1588 support is included in all variants
having a redundant Ethernet communication mod-
ule.
IEEE 1588 v2 features
• Ordinary Clock with Best Master Clock algorithm
• One-step Transparent Clock for Ethernet ring to-
pology
• 1588 v2 Power Profile
• Receive (slave): 1-step/2-step
• Transmit (master): 1-step
• Layer 2 mapping
• Peer to peer delay calculation
• Multicast operation
—
Table 5. Supported station communication interfaces and protocols
Interfaces/protocols
IEC 61850-8-1
IEC 61850-9-2 LE
MODBUS RTU/ASCII
MODBUS TCP/IP
DNP3 (serial)
DNP3 TCP/IP
• = Supported
Ethernet
100BASE-TX RJ-45
100BASE-FX LC
•
•
—
•
—
•
Required accuracy of grandmaster clock is +/-1 μs.
The relay can work as a master clock per BMC algo-
rithm if the external grandmaster clock is not avail-
able for short term.
The IEEE 1588 support is included in all variants
having a redundant Ethernet communication mod-
ule.
In addition, the relay supports time synchroniza-
tion via Modbus, and DNP3 serial communication
protocols.
Serial
RS-232/RS-485
•
—
•
—
—
•
•
—
—
•
•
—
Fiber optic ST
—
—
•
—
•
—
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