Tags

Tags help you organize PVs into logical groups for easier filtering and management.

What are Tags?

Tags are labels you can assign to PVs. A PV can have multiple tags, and tags can be organized into tag groups.

Examples of tag groups:

• System - Magnets, RF, Vacuum, Diagnostics
• Location - Sector 1, Sector 2, Injector, Linac
• Priority - Critical, Standard, Optional

Accessing Tag Management

Click Tags in the sidebar to manage tag groups.

Filtering by Tags

Throughout Squirrel, you can filter PV tables by tags:

1. Look for the tag filter dropdown above the table
2. Select one or more tags
3. The table updates to show only matching PVs

This works in:

• Snapshot Details
• Snapshot Comparison
• PV Browser

Managing Tag Groups

Admin Required

Creating and modifying tag groups requires admin privileges.

Creating a Tag Group

1. Click Create Tag Group
2. Enter a name for the group
3. Add tags within the group
4. Click Save

Editing a Tag Group

1. Click on the tag group name
2. Modify the name or tags
3. Click Save

Adding Tags to a Group

1. Open the tag group
2. Click Add Tag
3. Enter the tag name
4. Click Add

Deleting Tags

1. Open the tag group
2. Click the delete icon next to the tag
3. Confirm the deletion

Impact of Deleting Tags

Deleting a tag removes it from all PVs that have it assigned.

Assigning Tags to PVs

You can assign tags to PVs from:

PV Browser

1. Select PVs using checkboxes
2. Click Tags
3. Select tags to assign
4. Click Save

PV Details

1. Open the PV details page
2. Click Edit (admin mode required)
3. Modify tag assignments
4. Click Save

Best Practices

!!! tip "Tag Organization" - Use consistent naming conventions - Create tag groups that match your organizational structure - Avoid too many tags - keep it manageable - Use descriptive names that are clear to all users