Westermo MRD-3x0 - Manual (Page 177)

177 6623-3201
As shown in Figure 126 the following options can be set for
the DNP3 Serial-IP Gateway:
Station type
The DNP3 IP-Serial Gateway can be configured to operate in
three modes:
TCP listen endpoint
The serial server will listen for TCP connections on the speci-
fied port number.
TCP dual endpoint
The serial server will normally listen for TCP connections on
the specified port number, however, if a valid DNP packet is
received at the serial port and no connection exists, a connec-
tion will be established to the specified master address. This
is useful if a SCADA master will poll periodically but facility is
required to support unsolicited responses.
UDP endpoint
The serial server will operate in UDP mode, receiving data
on the specified port number and transmitting responses to
the specified master.
Listen port
For all station types, this determines the TCP/UDP port
the serial server will listen for connections (TCP) or data
(UDP) on. The value entered should be a valid TCP/UDP port
number. The default DNP3 port number is 20000.
Master address
This is the IP address of the SCADA master. The address
entered should be in IPv4 decimal dotted notation.
Master port
This is the TCP/UDP port the serial server will connect to
(TCP) or transmit to (UDP). The value entered should be a
valid TCP/UDP port number. The default DNP3 port number
is 20000.