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Introduction
1.2 Application Scope
Messages and Measured Values; Recording of Event and Fault Data
The operational indications provide information about conditions in the power system and the device itself.
Measurement quantities and resulting computed values can be displayed locally and communicated via the
serial interfaces.
Device messages can be assigned to a number of LEDs on the front panel (allocatable), can be externally pro-
cessed via output contacts (allocatable), linked with user-definable logic functions and/or issued via serial in-
terfaces (see Communication below).
During a generator or network fault (fault in the power system), important events and state changes are stored
in a fault annunciation buffer. The instantaneous or rms measured values during the fault are also stored in the
device and are subsequently available for fault analysis.
Communication
Serial interfaces are available for the communication with operating, control and memory systems.
Front Interface
A 9-pin DSUB socket on the front panel is used for local communication with a personal computer. By means
of the SIPROTEC 4 operating software DIGSI, all operational and evaluation tasks can be executed via this
operator interface, such as specifying and modifying configuration parameters and settings, configuring user-
specific logic functions, retrieving operational and fault messages and measured values, readout and display
of fault recordings, querying of device statuses and measured values.
Rear Interfaces
Depending on the individual ordering variant, additional interfaces are located at the rear side of the device.
They serve to establish an extensive communication with other digital operating, control and memory compo-
nents:
The service interface can be operated via electrical data lines and also allows communication via modem. For
this reason, remote operation is possible via personal computer and the DIGSI operating software, e.g. to
operate several devices via a central PC.
The system interface ensures the central communication between the device and the substation controller. It
can be operated via data lines or fibre optic cables. Several standard protocols are available for the data trans-
fer:
• IEC 61850
An EN 100 module allows to integrate the devices into 100 Mbit Ethernet communication networks used by
process control and automation systems and running IEC 61850 protocols. In parallel to the process control
integration of the device, this interface can also be used for communication with DIGSI and for inter-relay
communication via GOOSE.
• IEC 60870-5-103
This profile also integrates the devices into the substation automation systems SINAUT LSA and SICAM.
• Profibus DP
This protocol of automation technology allows transmission of indications and measured values.
• Modbus ASCII/RTU
This protocol of automation technology allows transmission of indications and measured values.
• DNP 3.0
This protocol of automation technology allows transmission of indications and measured values.
• It is also possible to provide an analog output (2 x 20 mA) for output of measured values.
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SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
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