1.2 Application Scope
21
7SD610 Manual
C53000-G1176-C145-4
personal computer and the DIGSI operating software, e.g. to operate several devices
via a central PC.
The system
interface is used for central communication between the device and a
control centre. It can be operated through the RS232, RS485 or FO port. For data
transmission there are several standardized protocols available. An EN100 module
allows to integrate the devices into the 100 MBit Ethernet communication networks of
the process control and automation systems using IEC 61850 protocols. In parallel to
the link with the process control and automation system, this interface can also handle
DIGSI communication and inter-relay communication using GOOSE.
Another interface is provided for the time synchronization
of the internal clock via ex-
ternal synchronization sources (IRIG-B or DCF77).
Other interfaces provide for communication between the devices at the ends of the
protected object. These protection data
interfaces have been mentioned above in the
protection functions.
The operator or service interface allows to operate the device remotely or locally. This
is possible during commissioning, checking and also during operation with the devices
at all ends of the protected object via a communication network. For this a special tool,
the „WEB-Monitor“, is provided, which has been optimized for differential protection.
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