Rockwell Automation Publication 2080-UM002M-EN-E - April 2022 85
Chapter 6 Micro870 Controller Distributed Network Protocol
Master UDP Port Number
This value is used to configure Master UDP Port Number if the parameter End
Point Type is selected as Datagram Only.
The valid range is 0…65535. Default value is 20000.
Keep Alive Interval (x 1s)
This parameter specifies a time interval for TCP Keep Alive mechanism.
If the timer times out, the controller transmits a keep-alive message. The keep-
alive message is a DNP Data Link Layer status request
(FC_REQUEST_LINK_STATUS). If a response is not received to the keep-alive
message, the controller deems the TCP connection broken and closes the TCP
connection.
The valid range is 1…65535. Default value is 10.
Slave Node Address
This value is a node address of this DNP3 Slave.
The valid range is 0…65519. Default value is 1.
Local Port Number (UDP)
This value is used to configure Local UDP Port Number which is used for UDP
socket listening.
The valid range is 0…65535. Default value is 20000.
Local Port Number (TCP)
This value is used to configure Local TCP Port Number which is used for TCP
socket listening.
The valid range is 0…65535. Default value is 20000.