Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide - Manual (Page 133)

FactoryTalk Historian To Historian Interface User Guide 127
For some of the Health Points described subsequently, the interface updates their values at
each performance summary interval (typically, 8 hours).
[UI_HEARTBEAT]
The [UI_HEARTBEAT] Health Point indicates whether the interface is currently running.
The value of this point is an integer that increments continuously from 1 to 15. After reaching
15, the value resets to 1.
The fastest scan class frequency determines the frequency at which the interface updates this
point:
Fastest Scan Frequency Update frequency
Less than 1 second 1 second
Between 1 and 60
seconds, inclusive Scan frequency
More than 60 seconds 60 seconds
If the value of the [UI_HEARTBEAT] Health Point is not changing, then this Interface is in
an unresponsive state.
[UI_DEVSTAT]
The Historian to Historian Interface is built with UniInt 4.4.4.0. New functionality has been
added to support health tags. The Health tag with the point attribute
ExDesc =
[UI_DEVSTAT] represents the status of the source device. The following events can be
written into this tag:
 “1 | Starting” - the interface is starting.
 “Good” - the interface is properly communicating and reading data from the server.

The following event represents a failure to communicate with the server:
o "3 | 1 device(s) in error | Network communication error to source Historian
Server"
o "3 | 1 device(s) in error | Unable to get archive data from source Historian
Server"
o "3 | 1 device(s) in error | Unable to get snapshot data from source Historian
Server"
o "3 | 1 device(s) in error | Unable to write data to receiving Historian Server"
o "3 | 1 device(s) in error | Unable to obtain current data with source Historian
Server failover enabled."
 “4 | Intf Shutdown” - the interface is stopped.
Refer to the UniInt Interface User Manual for more information on how to configure health
points.