Niagara R2 – Lifecycle Margin vs Station Database Resource Count

[Product_Support]

Issue

Copy or paste operations in Niagara R2 fail when the selected objects exceed the maximum allowed size. Users often see this when working with large sections of the station database.

Product Line

TAC IA Series

Environment

• Niagara R2 stations (UNC-410, UNC-510, UNC-520, TRD-NXT)
• WorkPlace Pro
• JDE tree operations (cut, copy, paste)

Cause

The Lifecycle margin defines the maximum size (in resource count) for any cut or copy operation in a running station. If the combined resource count of the selected objects exceeds this margin, the operation is blocked.
For example, if the lifecycle margin is 20,000 and the selected objects total 43,000 resources, the operation will fail.

Resolution

1. Understand Resource Limits:

   • UNC-410, UNC-510, UNC-520: 600,000 resources
   • TRD-NXT: 2,500,000 resources
   • Lifecycle margin: 20,000 resources for cut/copy operations.

2. Check Current Resource Usage:

   • In WorkPlace Pro, go to Search > Resource Count.
   • Select the station root in the JDE tree to view the total resource count and lifecycle margin.

3. Adjust Your Operation:

   • If the cut/copy exceeds the lifecycle margin, break the operation into smaller portions.
   • Perform multiple smaller cut/paste actions instead of one large operation.

4. Additional Notes:

   • Lifecycle margin exists to support the Undo feature in JDE.
   • This mechanism temporarily creates a new tree of objects in memory, which is why limits apply.