---
title: "PEI CL - Main Screen"
slug: "reviewing-the-corrosion-loop-main-screen"
tags: ["PEI", "CL"]
updated: 2026-10-27T23:11:45Z
published: 2026-10-27T23:11:45Z
canonical: "ims-handbook.cenosco.com/reviewing-the-corrosion-loop-main-screen"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PEI CL - Main Screen

To see the list of registered Corrosion Loops:

- Go to the IMS Main Menu.
- Click **Corrosion Loops** to go to the Corrosion Loop Main Screen (Grid List).

![A screenshot of a social media post  Description automatically generated](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/reviewing-the-corrosion-loop-main-screen-image-ttkuy6v2.png?sv=2026-02-06&spr=https&st=2026-10-28T21%3A54%3A23Z&se=2026-10-28T22%3A54%3A23Z&sr=c&sp=r&sig=C7ew7oez4Ck2QVoIjjEmo91IHDrLb7oWrVVypGK%2FxWA%3D)Click on the Corrosion Loop Main menu, to list all CL. 

- Use the scoping bar, the filter, or the search functionality to list the desired loops.

![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/reviewing-the-corrosion-loop-main-screen-image-c52kmrla.png?sv=2026-02-06&spr=https&st=2026-10-28T21%3A54%3A23Z&se=2026-10-28T22%3A54%3A23Z&sr=c&sp=r&sig=C7ew7oez4Ck2QVoIjjEmo91IHDrLb7oWrVVypGK%2FxWA%3D)Find CLs using the scoping bar / filter / search functionality.

Each record shows several fields, summarizing the Corrosion Loop (see the table below). To see more, click on the Settings icon in the toolbar and add additional fields.

![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/reviewing-the-corrosion-loop-main-screen-image-z10s02d7.png?sv=2026-02-06&spr=https&st=2026-10-28T21%3A54%3A23Z&se=2026-10-28T22%3A54%3A23Z&sr=c&sp=r&sig=C7ew7oez4Ck2QVoIjjEmo91IHDrLb7oWrVVypGK%2FxWA%3D)Click on the settings icon to modify the grid.

Default CL data in the CL record:

| Column Name | Description |
| --- | --- |
| Active | Shows whether the CL is active or inactive. A green bar means the Loop is active, a grey bar means it is inactive. ![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/reviewing-the-corrosion-loop-main-screen-image-tptsh1vy.png?sv=2026-02-06&spr=https&st=2026-10-28T21%3A54%3A23Z&se=2026-10-28T22%3A54%3A23Z&sr=c&sp=r&sig=C7ew7oez4Ck2QVoIjjEmo91IHDrLb7oWrVVypGK%2FxWA%3D) |
| Corrosion Loop Number | Unique identifier for a CL, to be populated when creating a new Loop. |
| Corrosion Loop Name | Name / short description for the CL, to be populated when creating a new Loop. |
| Unit | Unit to which the Loop belongs, a CL can only be assigned to one parent Unit. |
| Plant | Plant to which the Loop belongs. |
| Crit | The driving Criticality result from all Components and Sub-Components assigned to the CL. |
| Best IOW Quality Indicator | This shows the bets PI Status of all IOWs connected to the CL. Below is shown the best to the worst status: - Interfaced with PI and connected to Barrier - Connect to Barrier. - Not Interfaced with PI Service. - Fill in Recommended Fields. |
| Nr of IOW Variables | Number of Integrity Operating Windows / Variables registered for the CL. |
| Components | Number of Components and Subcomponents assigned to the CL. |
| Nr Of Circuits | Number of Circuits assigned to the CL (normally via inherit Components). |
| Nr of Degradation Mechanisms | Number of DMs assigned to the CL. Expand the row in the main grid to list the DMs: ![A screenshot of a cell phone Description automatically generated](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/reviewing-the-corrosion-loop-main-screen-image-lm898txo.png?sv=2026-02-06&spr=https&st=2026-10-28T21%3A54%3A23Z&se=2026-10-28T22%3A54%3A23Z&sr=c&sp=r&sig=C7ew7oez4Ck2QVoIjjEmo91IHDrLb7oWrVVypGK%2FxWA%3D) |
| NID | The earliest Next Inspection Date of the Schedules for the Component’s in the loop. |
| LID | The Last Inspection Date of the Schedules for the Component’s in the loop. |
| Remnant Life | The earliest RL date for Components assigned to the CL. |
| IDAP Status | Shows the selected IDAP Status for Components assigned to the CL. The available statuses are: - Analysis no data - Analysis new data - Analysis not started - Analysis in-progress - Analysis completed, action required - Analysis completed, no action required |
| Labels | Custom labels added by users for each record. |
| CCD in status | The status of the DDC – Approved / Draft. |
| Last reviewed/approved | The Revision/Approval date of the CCD. |

For more information on the Menu Toolbar and the filters see [IMS Main Screen (Grid List)](/v414/docs/basic-navigation-other-main-menu-options).

## CMF Main Menu

The CMF Main Menu also contains CL data and can be used for [Reviewing Barrier Statuses in the Software](/v414/docs/reviewing-barrier-statuses-in-the-software).