Health Indicator Statuses | On-Premises APM

About Health Indicator Statuses

The status of a Health Indicator record is based upon values that are stored in the Health Indicator record and the source records to which the Health Indicator record is linked. Each source record defines the upper and lower limit values that are compared to the most recent reading values in order to determine the status of a corresponding health indicator.

The Asset Health Indicator service automatically updates either the Last Numeric Reading Value or Last Char Reading Value field in Health Indicator records to correspond to the reading in the most recent reading source record. If the Asset Health Indicator service is not running, or if there are many items in the queue to process, a Health Indicator record may not be updated immediately with the reading value from the most recent reading source record. If this issue occurs, the problem may correct itself as the Asset Health Indicator service finishes processing items in the queue. However, if the problem does not correct itself, an administrative user can manually resync health indicators.

Access Health Indicator Status Information for an Asset

Procedure

In the Asset Health Manager Overview page, access the Health Summary page using one of the following methods:
- Select Open Health Summary, and then select an asset in the Asset Hierarchy pane.
- In one of the lists of assets (that is, No Status, Normal, Warning, or Alert), select an asset name.
- In the Health Indicator Status by Asset graph, select the bar chart for an asset.
The Health Summary page appears, displaying the Indicators section of the workspace for the selected asset. The number on the Indicators tab represents the total number of health indicators for the selected asset and its subsidiary assets. The boxes below the tab summarize the statuses of these health indicators.

Note: It is possible that in some cases the number would be counted multiple times, for example, if the Asset group has the parent asset as well as the child assets of the same parent, then the count be calculated twice. This is expected behavior.

If it is not already selected, select the This Asset tab.

The This Asset subsection provides information about the health indicators for the selected asset. The grid in this section contains the following columns:


Column	Description
Status	Contains an icon that represents the current status of the corresponding health indicator.
Name	The name of the health indicator associated with the asset. The date and time of the latest reading also appears in this column.
Health Indicator	Contains a gauge showing where the latest reading value stored in the Health Indicator record falls within the corresponding limit values.
Acknowledgment	If the health indicator status has been acknowledged, this column contains the icon and the status is counted as normal in the cumulative status at the top of the page. If the acknowledgment has an expiration date (i.e., if it is not a one-time acknowledgment), that date also appears in the column.

If the selected asset has no health indicators directly associated with it, this section will be empty.

Select the Subsidiary Assets tab.

The Subsidiary Assets subsection provides a summary of health indicators for each asset under the currently selected asset in the Asset Hierarchy.

The grid in this section contains the following columns:


Column	Description
Status	Contains an icon that represents the cumulative status of health indicators associated with the selected asset and any subsidiary assets. Note: The cumulative status is determined by the most severe status, ranked in this order: Alert, Warning, No Reading, Normal. In addition, an alert or warning status that has been acknowledged is counted as having a normal status. For example, suppose that an Equipment record is linked to three Health Indicator records: one which meets the normal status criteria, one which meets the warning status criteria, and one which meets the alert status criteria, but has been acknowledged. The cumulative status of health indicators for the piece of equipment is warning.
Asset	The name of a subsidiary asset. You can select the name to reload the Health Summary page in the context of that asset.
Health Indicator	Contains a bar chart that summarizes the health indicator statuses of the corresponding asset and any subsidiary assets.

If you are viewing an asset in the bottom level of the Asset Hierarchy, no content will appear in this section.

What To Do Next

About Status Criteria for Numeric Health Indicators

If a source record has numeric readings, the limits define a range of values that correspond to each health indicator status.


Status	Color	Description
Normal	Green	The reading value falls between the lower level 1 limit and the upper level 1 limit.
Warning	Yellow	The reading value is less than or equal to the lower level 1 limit and greater than the lower level 2 limit. -or- The reading value is greater than or equal to the upper level 1 limit and less than the upper level 2 limit.
Alert	Red	The reading value is less than or equal to the lower level 2 limit. -or- The reading value is greater than or equal to the upper level 2 limit.

For example, consider the following Measurement Location limit values:

Upper Level 3 = 140
Upper Level 2 = 130
Upper Level 1 = 120
Lower Level 1 = 110
Lower Level 2 = 100
Lower Level 3 = 90

Given these values:

Normal = Any reading value greater than 110 and less than 120 (111 - 119)
Warning = Any reading value greater than or equal to 120 and less than 130 (120 - 129), or less than or equal to 110 and greater than 100 (101 - 110)
Alert = Any reading value greater than or equal to 130 (130 and above) or less than 100 (100 and below)

Note: Upper and lower level 3 limit values are not used to determine numeric health indicator statuses; instead, these values should represent the highest and lowest reading values that are expected to be recorded.

About Status Criteria for Character Health Indicators

If a source record has character readings, the specific character values defined for each limit correspond to a specific health indicator status.


Status	Color	Description
Normal	Green	The reading value is not defined in a limit value.
Warning	Yellow	The reading value matches the value defined for either of the following limits: Lower Level 1 Upper Level 1
Alert	Red	The reading value matches the value defined for any of the following limits: Lower Level 2 Lower Level 3 Upper Level 2 Upper Level 3

For example, consider the following Measurement Location limit values:

Upper Level 3 = Critical
Upper Level 2 = Poor
Upper Level 1 = Moderate

Given these values:

Normal = Any reading value not otherwise specified in a limit level. For example, the reading Good would result in a normal status.
Warning = Reading value Moderate.
Alert = Reading value Critical or Poor.

Health Indicator Status Icons

When viewing the Asset Health Manager page with an asset record selected in the Asset Hierarchy, a status icon appears next to each health indicator listed in the This Asset section and each asset listed in the Subsidiary Assets section.

The following icons are used to represent the various statuses of a health indicator.


Status	Icon	Description
Normal		Indicates that the corresponding Health Indicator record meets normal status criteria.
Warning		Indicates that the corresponding Health Indicator record meets warning status criteria.
Alert		Indicates that the corresponding Health Indicator record meets alert status criteria.
No Readings		Indicates that the health indicator source record of the corresponding Health Indicator record is not associated with any reading source records. For example, if the source record is a Measurement Location record, the status icon will be gray if the Measurement Location record is not linked to any Reading records.
No limit values	No icon	For numeric health indicators, if limit values are not defined in a health indicator source record, no status will appear for the corresponding health indicator.

Health Indicator Gauges

When viewing the Asset Health Manager page with an asset record selected in the Asset Hierarchy, the This Asset section contains gauges showing the latest reading value stored in the Health Indicator record in respect to the corresponding limit values.

Each gauge contains various colored sections that represent the status criteria that the Health Indicator record could meet. The latest reading value is displayed on the gauge, along with a black pointer that identifies the status of the reading.

The gauge displays details differently depending on the limit values that are defined, the reading values that exist, and whether the health indicator has character or numeric readings. The following table summarizes these scenarios.


Scenario	Reading Type	Description
Latest reading falls within defined limits.	Numeric	The latest reading is displayed proportionally to where the reading falls between the limit values.
Latest reading falls within defined limits.	Character	The latest reading is displayed in the center of the corresponding status section.
Latest reading does not fall within defined limits.	Numeric	The latest reading is displayed with an arrow pointing off the gauge in the direction of the exceeded limit.
Latest reading does not fall within defined limits.	Character	The latest reading is displayed in the center of the green status section.
A level 1 or 2 limit value is not defined for the health indicator.	Numeric	The sections in a gauge are displayed based on the limit values that are defined. The latest reading is displayed proportionally in the corresponding section if the limit values provide enough information to determine the relative position of the reading, otherwise, the reading is displayed in the center of the corresponding section.
	Character	The latest reading is displayed in the center of the corresponding status section.
The health indicator has no reading values associated with it, but limits have been defined.	Numeric	The text No Readings is displayed in the gauge along with the defined limit values.
	Character	The text No Readings is displayed in the gauge.
The health indicator has reading values associated with it, but no limits have been defined.	Numeric	The latest reading is displayed in the gauge, but no limit values are shown.
	Character	The latest reading is displayed in the center of the green status section.
The health indicator has no reading values associated with it and no limits have been defined.	Numeric	The text No Readings is displayed in the gauge.
	Character	The text No Readings is displayed in the gauge.
Health Indicator with no Source.		The text INVALID is displayed in the gauge.
Health Indicator with no Mapping.		The text INVALID is displayed in the gauge.