master station. When this time period expires, the Outstation will request
a time update via the IIN1.4 "Need Time" bit in all DNP3 responses. The
configured value is in milliseconds and defaults to 1 hour (3,600,000ms).
Application Confirm Timeout:
the field specifies how long the device will
wait for an application layer confirmation from the master station. This
timer is most commonly used when waiting for confirmation for DNP3
events sent to the master. The configured value is in milliseconds and
defaults to 20 seconds (20,000ms).
Select Timeout:
the setting is used by Select/Operate control actions
requested by master station, which specifies the maximum time that a
Select action will remain valid before the corresponding Operate
action is received. The configured value is in milliseconds and defaults
to 10 seconds (10,000ms).
Link Confirm Timeout:
the field sets the maximum time to wait for a Link
level confirmation message if requested. This field will only be used for
Link Test Frame and Request Link Status if they are sent. The configured
value is in milliseconds and defaults to 5 seconds (5,000ms).
Link Retries:
the field specifies the maximum number of Link layer retries
if Link layer Confirm times out. The default value is 3 retries.
Offline Poll Period:
the field specifies how often a session that is offline
will attempt to re-establish communication. This includes attempting to
open/reopen a channel and/or re-issuing request status messages as
appropriate for the current configuration. The configured value is in
milliseconds and defaults to 10 seconds (10,000ms).
Enable Self-Address:
if enabled, the device will respond to DNP3 frames
with destination address 65532 (0xFFFC) as if the message had used the
device’s unique individual address.
Responses always include
the device’s individual address in the source
address field. This feature can simplify the commissioning,
troubleshooting and maintenance of devices because it is not
necessary to know the receiving device’s address ahead of time. Once
the destination dev
ice’s true address is discovered, testing can resume
with the proper individual address.
