Rockwell Automation Publication 1766-UM001I-EN-P - June 2015 233
MicroLogix 1400 Distributed Network Protocol (DNP3) Appendix F
The parameter DNP3 over IP Enable is configured in the Channel 1 tab and
other parameters are configured in the Chan. 1 - DNP3 tab.
DNP3 over IP Enable
The valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked). Power cycle is required for changes to take effect.
When the selection is Disabled (Unchecked), DNP3 service over Ethernet is
disabled after power-cycle.
When the selection is Enabled (Checked), DNP3 service over Ethernet is
enabled after power-cycle.
Enable Master Address Validation
The valid selections are Enabled(Checked) and Disabled(Unchecked). Default
value is Disabled (Unchecked).
When the selection is Disabled(Unchecked), the MicroLogix 1400 accepts the
requests from any DNP3 Master.
End Point Types
End Point Type Connection Description
Listening End Point A single TCP Server connection Any of the requests are accepted and the responses are transmitted via this
connection.
The unsolicited responses are transmitted via this connection when this
connection is available.
UDP datagram Accepts only broadcast packets when DNP3 destination node is one of 0xFFFD,
0xFFFE and 0xFFFF in the request.
Dual End Point A single TCP Server connection Any of the requests are accepted and the responses are transmitted via this
connection.
The unsolicited responses are transmitted via this connection when this
connection is available.
This connection has higher priority than the Client connection.
A single TCP Client connection Any of the requests are accepted and the responses are transmitted via this
connection.
The unsolicited responses are transmitted via this connection when this
connection is available.
The MicroLogix 1400 does not request TCP client connection to DNP3 Master
until an unsolicited response is generated.
UDP Datagram Accepts only broadcast packets when DNP3 destination node is one of 0xFFFD,
0xFFFE and 0xFFFF in the request.
Datagram End Point UDP Datagram only Any of the requests are accepted and the responses are transmitted via this
connection.
All responses can be transmitted to the different DNP3 Master port according
to the configuration of the parameters Remote UDP Port Number and Master
IP Address0. If this parameter is not set to 0, the solicited responses are sent
to the DNP3 Master port that is configured. If this parameter is set to 0, the
solicited responses are sent to the DNP3 Master port that sent the request.
TCP connection is not available in this configuration.
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