Location2, Location3 – Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide User Manual
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FactoryTalk Historian To Historian Interface User Guide
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Location2
Location2
specifies data timestamp adjustment. The source Historian Server supplies a
timestamp for each data event. Users have the option of adjusting these timestamps to
account for time differences between Historian Servers. It is required that each Historian
Server have the correct system time for its configured time zone. See section
Location2
Value
Adjust for Time
Zone
Differences
Do Not Adjust for
Time Zone
Differences*
Adjust for
Clock Drift**
Truncate Sub-Second
Timestamps***
0
Yes
-
--
--
1
--
Yes
--
--
2
Yes
--
Yes
--
3
--
Yes
Yes
--
4
Yes
--
--
Yes
5
--
Yes
--
Yes
6
Yes
--
Yes
Yes
7
--
Yes
Yes
Yes
* Only available if source and/or receiving Historian Server is a PI2 system.
** Receiving Historian Server is the time master. Timestamps are adjusted to receiving Historian
Server time. An offset of 30 minutes or less is considered clock drift.
***Truncating sub-second timestamps can lead to data loss during history recovery and archive data
scanning if multiple events are stored within the same second. Use with caution.
Location3
Location3
is used to configure what interface status events are written to a tag.
„IO Timeout‟ status events will result in a data gap for periods of Historian Server
disconnection. See section
If a tag is configured for archive data collection, this attribute also specifies whether or not
the snapshot value is included with each scan update.
Location3
Value
Write
“I/O Timeout”
Write
“Access Denied”
Include
Snapshot
Point Level
Debugging
0
Yes
Yes
--
--
1
--
Yes
--
--
2
Yes
--
--
--
3
--
--
--
--
4
Yes
Yes
Yes
--
5
--
Yes
Yes
--
6
Yes
--
Yes
--
7
--
--
Yes
--
8
Yes
Yes
--
Yes
9
--
Yes
--
Yes
10
Yes
--
--
Yes
11
--
--
--
Yes
12
Yes
Yes
Yes
Yes