10.2.3. Changing DNP3 Serial PORT Parameters

This section describes how to change serial port configuration parameters used by the DNP3 protocol. Refer to Section 10.2.2 to change parameters common to all protocols.

*DNP must have already been assigned as port’s protocol per Section 10.2.1.

DNP3 protocol requires a unique device source address from 1 to 65535 and specific configuration parameters associated with the unsolicited response feature.

Click on any of the toggles below for instructions on changing a specific parameter:

DNP Source Address

To change the DNP source address:

MENU > COMMUNICATION > select port with “DNP” protocol > “Address:” > change digit

Enable/Disable DNP Unsolicited Responses

To enable or disable DNP unsolicited responses:

MENU > COMMUNICATION > select port with “DNP” protocol > “Unsolicited:” > select option

*Unsolicited responses are rarely used in DNP protocols. Before enabling unsolicited responses check with the network administrator to make sure the network is capable of supporting DNP unsolicited responses.

*The remaining DNP parameters are only used when DNP unsolicited responses are enabled.

DNP Unsolicited Response Destination Address

To change DNP unsolicited response destination address:

MENU > COMMUNICATION > select port with “DNP” protocol > “Destination address:” > change digits

DNP Unsolicited Response Acknowledgment Timeout

To change DNP unsolicited response acknowledgment timeout:

MENU > COMMUNICATION > select port with “DNP” protocol > “Timeout ms:” > change digits (value is in milliseconds)

DNP Number of Unsolicited Response Retries

To change DNP number of unsolicited response retries:

MENU > COMMUNICATION > select port with “DNP” protocol > “Retries:” > change digits