The Fleet Report

The Fleet Report provides a summary of all loops in the selected asset context for the selected time period. The report contains the following information:

Note:

CLPM analytics process raw tag data and produce results that are interpolated. These interpolated results are then used to produce the Fleet Report chart and table.
The measures presented in the Fleet Report are derived from KPIs that are produced by CLPM analytics. Consult the KPI Reference for details on these KPIs.

Access the Fleet Report

Procedure

In the module navigation menu, select Intelligence and then go to Control Loop Performance.

The Fleet Report appears, displaying the Average Control Loop Performance graph, diagnostics alerts filtering, and the Control Loop Performance table on selecting the required asset context, in the Select Context window. By default, the data reported in the Fleet Report is for seven days prior to the current date.

Note: Control Loop Performance reports are also accessible from the Dashboard menu.

Tip: If needed, you can perform the following steps:

Modify the asset context by selecting SELECT ASSET CONTEXT, navigating to the asset, and then selecting OPEN.
Modify the date range for which the data is reported.

Modify the Date Range for a Fleet Report

Procedure

Access the Fleet Report.
In the Fleet Report workspace, specify the new date range by selecting the start date and end date.
The report is updated with the new data.
Note: The date and time range for the reported data also appears in the report.
Important: The Fleet Report supports only a date range of up to 30 days.
Note: When you navigate from a Fleet Report to a Loop Report, the Loop Report is plotted with the end date selected in the Fleet Report. For example, if the date range selected in the Fleet Report is 12th November, 2018 00:00:00 to 18th November, 2018 23:59:59 (the last data point is from 19th November, 2018 00:00:00 to include any last micro second data point), after you navigate to the Loop Report, the Loop Report is plotted with data reported for 18th November, 2018 (that is, 18th November, 2018 00:00:00 to 19th November, 2018 00:00:00).

Average Control Loop Performance Chart

About the Average Control Loop Performance Chart

The Average Control Loop Performance chart contains a stacked-bar graph and a trend line. Each item in a stack represents the percentage of time the control element operated at each of the following control modes during the reporting period:

Manual
Auto
Cascade
Shutdown

The trend line represents the percentage of time the control element operated out of the specified limits during the reporting period.

The chart contains the following axes:

x-axis: Represents the date for which the data is plotted.
y-axis: Represents the percentage of time the control element operated at each control mode. It is calculated based on hourly samples for each date.

The Diagnostic Alerts Filtering Smart Filter

The Diagnostic Alerts Filtering smart filter is a visual tool to identify faulty control loops. Using this filter, you can perform the following tasks:

Identify control loops based on diagnostic alerts.
Classify the loops in three fault categories, namely Sensor, Actuator, and Tuning.
Drill down into the status of the alerts to find the list of control loops where action is needed.
Identify bad actors (poorly performing loops) among a large set of control loop assets.

Note: The filter is limited to the control loop diagnostic alert generated based on pre-defined probabilistic analytics.

The filter displays the number of alerts for each fault mode and the total number of alerts using interactive pie charts.

The pie charts illustrate the different fault modes of your control loops and the corresponding number of alerts. Each pie chart is further classified based on the alert status. The pie charts display the total the number of open and closed alerts. Each pie chart has a list displaying the top three control loops contributing the most number of alerts, in descending order.

On selecting the Open area of the pie chart, the details about the loops with the open alerts are updated in the list below the pie charts. Also, the Control Loop Performance table is updated to list only the control loops with open alerts.

Tip: Select Reset to reset the Diagnostic Alerts Filtering smart filter and the Control Loop Performance table.

The Control Loop Performance Table

Note: By default, the Control Loop Performance table is not populated with details about the control loops. Select Show all to access the list of all the control loops in the table.

In the Fleet Report, you can modify the reporting period by selecting a date prior to the current date in the Date Selector box. You can sort data based on any column in this table. By default, the table is sorted based on the value in the Performance Index AVG (100-0) column.

You can filter data in the table by:

Applying a global filter on the table
Using multiple-level filters
Using text in the filter field
Using conditional parameters

You can search for a specific control loop using different search options.

For each loop in the selected asset context, the table contains the following information.

Loop Statistic	Interpretation
Loop	The name of the control loop asset. If you select the link in this column, the Loop Report appears.
Limits Exceeded AVG (%)	The percentage of time for which the loop was in Auto, Cascade, or Manual mode, where the limits for these modes were exceeded. The time when the loop was in shutdown mode is not included in this statistic.
Performance Index AVG (100-0)	The average of the performance index during the specified reporting period. The value ranges from 100 to 0, where 100 indicates poor performance and 0 indicates good performance. By default, the table is sorted based on the value in this column. The performance index is an aggregate of the following values in the following proportions: One-third of the performance index value is composed of the percentage of time for which the loop limits were exceeded. The time when the loop was in the shutdown mode is not included in this statistic. One-third of the performance index value is composed of the percentage of time for which the loop was in the manual control mode. One-third of the performance index value is composed of the percentage of time for which the controller output was saturated. The controller output is considered saturated when the MV has a value of 0 or 100, which are the lower and upper limits for controller output saturation, respectively. A higher average performance index indicates that the loop is not performing well.
MV Movement	The average number of oscillations of the manipulated variable. You can use this statistic to investigate the ability of the control element to maintain the PV operating within process limits.
MV Saturation AVG (%)	The percentage of time that the MV for each loop was saturated.
Manual AVG (%)	The percentage of time that the loop was in the manual control mode.
Auto AVG (%)	The percentage of time that the loop was in the auto control mode.
Cascade AVG (%)	The percentage of time that the loop was in the cascade control mode.
Shutdown AVG (%)	The percentage of time that the loop was in the shutdown control mode.
Good Quality Data (%)	The percentage of time that the data was of good quality.
PV Variability AVG	The average PV variability. This value is a measure of the data spread in the PV data set, expressed as a percentage. This is the average value of the PV Variability KPI. Refer to the KPI Reference for the definition of this KPI.
Total Configuration Changes	The number of times the controller configuration was changed during the reporting period.
Absolute Error (Aggregate) AVG	The average of the absolute values of all errors during the reporting period. Error is calculated as the difference between PV and SP. Tip: Sorting the table based on this field is useful only if all loops use the same unit of measure.