Rockwell Automation 1756-HIST2G Historian ME 2.1 - Manual (Page 296)

F ACTORY T ALK H ISTORIAN ME M ODULE U SER G UIDE
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If data in the
FactoryTalk Historian
SE contains
timestamps that are not
being updated:
Check the status of Data Transfer on the Home page.

If Data Transfer status is
“Running”:

Go to the Advanced tab
to view the System Log
page. Check the log for
messages about the issue
and export log data.

Ensure that the CPU
load is at a normal rate
and not preventing data
from being transferred.

Ensure that points are
properly configured with
scan rates that are not too
low.

Ensure that Exception
and Compression values
are properly configured
for points.

If Data Transfer status is
“Error”:

Go to the Web Diagnostics
Firmware
tab,. Check the
Data Transfer
page. Pro-
cess information can con-
firm whether or not Data
Transfer is in a undesirable
state. N/A indicates an error
state.

Reboot the module.
If the FactoryTalk
Historian SE rejects
points from a new
module that has been
added to an existing
collection of modules
transferring data to
that server:

Ensure that the points are created in the FactoryTalk Histo-
rian SE before Data Transfer is started. This will ensure
that the point database and the archive can be synchro-
nized.

The FactoryTalk Historian SE rejects the points because
the archives have shifted several times and are outside the
range of the existing archives.
If fewer events than
expected have been
transferred to the
FactoryTalk Historian
SE:

Check the module CPU load. Data Transfer checks the
module CPU load before transferring data. If the load is
high, events are transferred at a slower rate.

Try changing the rate at which events are transferred. Go to
the Configure Historian tab. On the Data Transfer page,
increase the Maximum Events per Transfer value to allow
events to transfer more quickly.
Data Transfer
Symptom Solution