Viewing A List Of Serial Port Protocols - Siemens RX1500 User Manual

Chapter 3
Device Management
When a message with an unknown DNP source address is received on a local serial port, the DNP source
address and serial port number are entered into the Device Address Table. When a message with an unknown
DNP source address is received from the IP network, on the IP interface that is configured as the DNP learning
interface, the DNP source address and the IP address of the sender are entered into the Device Address Table.
When a message with an unknown DNP destination address is received on a local serial port, the message is
sent in a UDP broadcast to the network interface configured as the DNP learning interface. When a message with
an unknown DNP destination address is received from the IP network, it is sent to all local serial ports configured
as DNP ports.
NOTE
Learned addresses are not recorded in the Device Address Table.
UDP transport is used during the DNP address learning phase.
An aging timer is maintained for each DNP address in the table, and is reset whenever a DNP message is sent to
or received for the specified address.
This learning facility makes it possible to configure the DNP3 protocol with a minimum number of parameters: a
TCP/UDP port number, a learning network interface and an aging timer.
DNP Broadcast Messages
DNP addresses 65521 through 65535 are reserved as DNP3 broadcast addresses. ROX II supports DNP3
broadcast messages. DNP broadcast messages received on local serial ports are transmitted to all IP Addresses
in the Device Address Table (whether learned or statically configured).
When a DNP broadcast message is received from the IP network, it is transmitted on all local serial ports
configured as DNP ports.
Section 3.21.4

Viewing a List of Serial Port Protocols

To view a list of serial port protocols configured on the device, navigate to interface » serial » {slot/port} »
protocols, where {slot/port} is the slot name and port number of the serial port. If protocols have been
configured, the Serial Protocols table appears.
Figure 122: Serial Protocols Table
If no serial port protocols have been configured, add protocols as needed. For more information, refer to
Section 3.21.5, "Adding a Serial Port
122
Protocol".
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User Guide
Viewing a List of Serial Port Protocols