Protocols & Communication

Problem

All DNP3 points are removed after changing the TCP Port in 'DNP in TCP'

STEPS:

-Configure a LAN IP address and add various DNP3 points

-Enable 'DNP in TCP' Protocol

-Write the changes to the controller

-Edit On Line

-Click Controller > IP Configuration > DNP in TCP >

-Modify the TCP Port and click OK

-Edit Off Line

-Read from Controller

-Click Controller > DNP Configuration > -DNP3 points are missing

Environment

TelePACE DNP ISaGRAF TCP

Fix

When there are no longer ports configured for DNP the DNP
configuration can be deleted to reclaim memory. In order to change the DNP in TCP port number
DNP in TCP must be disabled and then re-enabled. If no other ports were configured for DNP then
the DNP configuration will be disabled when the configuration change is made. In order to
prevent this a second port should be configured for DNP.