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1MRS757820 B
Section 3
3.1
3.1.1
3.1.2
3.1.3
Recloser Protection and Control RER615
Communication Protocol Manual
Vendor-specific implementation
DNP3 link modes
DNP3 data objects
The DNP3 protocol in 615 series IEDs is built on top of the internal IEC 61850
data model. Thus, the DNP3 application data objects and Class events are derived
from IEC 61850 data objects and data set reporting. The 615 series IEDs have a
predefined IEC 61850 data set configuration. In other words, it is predefined which
internal data object changes the 615 series IEDs detect.
The available DNP3 data objects in the 615 series IEDs are selected from the
objects predefined in the IEC 61850 data sets. Consequently, all the available
DNP3 data points can be freely configured for DNP3 Class event reporting.
For a list of the available data objects, see the point list manual.
DNP3 serial link mode
DNP3 serial can be assigned to a serial communication port in the IED. Serial
communication ports are named COM1...COMn, depending on how many serial
ports the 615 series IED hosts.
DNP3 protocol ignores any parity setting in the COM settings
group; DNP3 is defined as an 8 bit/no parity protocol with a 16-bit
CRC every 16 bytes. This provides better error detection than parity.
DNP3 TCP/IP mode
DNP3 TCP/IP link mode is supported by the IED.
The IED listens for a connection from a DNP3 master on port 20000.
Documentation concerning DNP3 TCP/IP communication is available from
www.dnp.org.
Vendor-specific implementation
Section 3
11
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