Example Diagram: Creating Health Indicator and Health Indicator Value Records

This policy diagram contains the following nodes.

Node Name	Node Type	Description
Flow, Pressure, Lube Check, Ops Check, and Vibration	Health Indicator	Represents various existing Health Indicator records whose primary source records are Measurement Locations. These records provide the values used in successor nodes to determine the overall health of the pump.
Alert Level + 1	Add	Adds 1 to the value in the Alert Level field in the corresponding Health Indicator record. The resulting value (n+1) is used as the denominator in the successor Divide nodes.
20 / <Health Indicator name> Alert	Division	Divides 20 by the result of the corresponding Add node. This value represents the Health Index contribution for each node. 20 is used as the numerator to ensure that each individual Health Indicator has equal weight, (i.e., since there are five Health Indicators, 20 is one-fifth of 100).
Various	Add	Combine the results from the Division nodes. This sum represents the overall health index of the pump on a numeric scale between 1 and 100, where a higher value is better than a lower value.
Round to nearest integer	Round	Rounds the value of the overall health index to the nearest integer.
Health Index	Add Value to Health Indicator	Adds the rounded value of the overall health index to a new Health Indicator Value record and links the record to a Health Indicator record.
Health Indicator	Health Indicator	Represents the Health Indicator record to which the Health Indicator Value record will be linked when the policy is executed.

Continuing with the example, consider that the following Health Indicator records contain the following values in the Alert Level field:

When the policy is executed:

The Calculation nodes that are described in step 2 will yield the following values for the Health Indicators:
- Flow Rate: 20 (i.e., 20/[0+1]=20)
- Pressure: 10 (i.e., 20/[1+1]=10)
- Lubrication: 20 (i.e., 20/[0+1]=20
- General Operation: 10 (i.e., 20/[1+1]=10)
- Vibration: 10 (i.e., 20/[1+1]=10)
The Calculation nodes that are described in step 3 will yield a sum of 70 (i.e., 20+10+20+10+10=70)
A new Health Indicator record, as specified in the policy instance associated with the Health Indicator node, will be created automatically that indicates the overall health of the pump.
A Health Indicator Value record associated with the new Health Indicator record will be created automatically. The Value (Numeric) field will be populated with the value 70.
You can view the new Health Indicator record in AHM just like you can view Health Indicator records whose primary sources are Measurement Location, Xi Tag, or KPI records.