Associate an SIL Assessment with an Instrumented Function

When you associate an SIL Assessment with an Instrumented Function, the GE Digital APM system performs the SIL calculations for the Instrumented Function based on the values that you have provided in the associated SIL Assessment. You can associate only one SIL Assessment with an Instrumented Function.

This topic describes how to associate the following SIL Assessments with an Instrumented Function:

LOPA Assessment
Risk Matrix Internal Assessment
PHA Internal Assessment
External Assessment

Steps

Access the Instrumented Function with which you want to associate an SIL Assessment.
In the workspace, select the SIL Assessment tab.

The SIL Assessment section appears, displaying a list of SIL Assessments performed on the Instrumented Function.
In the Link column, select the option button that corresponds to the SIL Assessment that you want to associate.

The SIL Assessment is associated with the Instrumented Function.

Results

Based on the values that you have entered in the SIL Assessment, GE Digital APM system populates the following values in the Instrumented Function datasheet :
- Selected SIL Value
- Required Probability of Failure
- Risk Reduction Factor
- Spurious Trip Limit (per year)
- Failure Rate UOM
- Availability Target
- Last Modified
If you associated a LOPA Assessment, Risk Matrix Internal Assessment, or a PHA Internal Assessment with the Instrumented Function, then the Risk Assessment record associated with the corresponding SIL Assessment is also linked with the Instrumented Function.