Rockwell Automation FactoryTalk Historian Classic User Guide User Manual

Page 79

Analyzing FactoryTalk Historian Classic Data Chapter 4

Batch ID field. If the selected value for a batch parameter field
is enough to identify the batch uniquely—as is the case with
the Batch ID field for the XYZ100 batch—the fields that
follow will be filled in for you.

TIP

The first batch selected will drive the time axis (X-axis) on the
time-series chart. So for example, if you wish to compare an

actual batch XYZ100 with the IdealBatch, you should select batch
XYZ100 first so that the X-axis reflects the time range when the

actual batch was run.

11. In the second row of the Batch Prompt, again select the Water

Temperature reporting tag from the list of reporting tags and

select the batch parameters for the second batch you wish to
compare, in this case, XYZ101.

12. Click OK to return to the chart in your report.

The batch parameters as well as the start and end times for
both batches are displayed in the Authoring Legend. Notice
that the time axis is controlled by the first batch selected. You
will notice that the values along the X-axis are actual clock
times. If you want to see the times that the data values were

collected relative to the start of the batch (for example, where
the data value at 00:00:04 on the X-axis represents data that
was collected 4 seconds after the start of the batch), select the
Elapsed Time option on the Axis tab of the Configure Time
Series Report Object dialog box.

1. Time-Series Reporting Tag Annotation allows you to select a

value in a time-series chart in the Configuration Console or
the Quick Web and associate a comment with that value.
There are three different types of Time-Series Reporting Tag
Annotations: value comment, X-axis comment, and Y-axis
comment.

2. For example, suppose you noticed a spike in the data on the

time-series chart that was caused by an operator who
accidentally kicked out the power cord on the machine from
which the data was being collected. When report users see this
chart, they will want to know what caused the spike. Tag

Add a Comment to a Value,
X-axis, or Y-axis on a
Time-series Chart

Rockwell Automation Publication HIST-UM001K-EN-E-June 2014