Layers of Protection Analysis Deployment
Deploy LOPA for the First Time
The following table outlines the steps that you must complete to deploy and configure this module for the first time. These instructions assume that you have completed the steps for deploying the basic system architecture.
These tasks may be completed by multiple people in your organization. We recommend, however, that the tasks be completed in the order in which they are listed.
| Step | Task | Notes |
|---|---|---|
| 1 | Modify existing or create additional Initiating Events. | This step is required only if you want to modify or create additional initiating event types that appear in the Initiating Event Type field, on the LOPA datasheet. Note: Initiating Event records also populate the CCPS Cause Type field on the Hazards Analysis Cause datasheet. Therefore, any modifications to these records will also reflect on the Hazards Analysis Cause datasheet. |
| 2 | Modify existing or create additional Consequence Adjustment Probabilities. | This step is required only if you want to modify or create additional conditional modifier types that appear in the Modifier Type field, on the Consequence Modifier datasheet. |
| 3 | Modify existing or create additional Active IPLs. | This step is required only if you want to modify or create additional active IPL types that appear in the IPL Sub Type field, on the Hazards Analysis Safeguard datasheet. |
| 4 | Modify existing or create additional Passive IPLs. | This step is required only if you want to modify or create additional passive IPL types that appear in the IPL Sub Type field, on the Hazards Analysis Safeguard datasheet. |
| 5 | Modify existing or create additional Human IPLs. | This step is required only if you want to modify or create additional human IPL types that appear in the IPL Sub Type field, on the Hazards Analysis Safeguard datasheet. |
| 6 | Modify the Safety Integrity Level record. | The Safety Integrity Level records contain the standard boundary values for the required probability of failure for each SIL. This step is required only if you want to modify the default boundary values for the required probability of failure for a Safety Integrity Level. |
| 7 | Review the LOPA data model to determine which relationship definitions you will need to modify to include your custom equipment and location families. Via Configuration Manager, modify the relationship definitions as needed. | This step is required only if you store equipment and location information in families other than the baseline Equipment and Functional Location families. |
| 8 | Assign Security Users to one or more of the LOPA Security Groups and Roles. | This step is required. |