Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide - Manual (Page 93)

FactoryTalk Historian To Historian Interface User Guide 87
Historian Tag ExDesc Required /
Optional Description Value
interface is running but cannot
communicate with the data source.
2 = Backup No Historian
Connection: The interface is
running and connected to the data
source but has lost its
communication to the Historian
Server.
3 = Backup: The interface is
running and collecting data
normally and is ready to take over
as primary if the primary interface
shuts down or experiences
problems.
4 = Transition: The interface stays
in this state for only a short period
of time. The transition period
prevents thrashing when more than
one interface attempts to assume
the role of primary interface.
5 = Primary: The interface is
running, collecting data and
sending the data to Historian.
[UFO2_STATE:#]
(IF-Node2) Optional State 2 Tag
The ExDesc must start with the
case sensitive string:
[UFO2_STATE:#]
The number following the colon (:)
must be the Failover ID for the
interface running on IF-Node2
The failover state tag is
recommended. Normally updated
by the interface
currently in the
Primary state.
Values range
between 0 and 5.
See description of
State 1 tag.