Rockwell Automation 1756-HIST2G Historian ME 2.1 - Manual (Page 292)

F ACTORY T ALK H ISTORIAN ME M ODULE U SER G UIDE
282
H IGH S PEED T REND P ACE E RROR
If the message “[ERROR] Unable to keep pace with High Speed Trend causing data
loss” message is logged in the System Log page, potential data loss may occur. Due
to performance issues with the controller, the backplane or the module, the module
cannot receive new high-speed events from the controller. Stop and start Data
Collection to mitigate the impact.
The module receives a
high-speed event with
a timestamp 10
minutes into the future,
discards that event,
and logs the following
error message into the
system log:
[ERROR]
TagProcessingForPolle
dAndAdvised()
dropped future event
for point<ID> with
<timestamp> with
timeDelta=<number of
seconds into future
>.

Check the controller time.

Ensure that the controller time is correct.
Data Collection
Symptom Solution