Xenta Groups offline in Vista classic or not getting any alarms

[Product_Support]

Issue

Xenta Groups do not come online under Echelon LTA in Vista Classic or Xenta 911, and no alarms are received from any Xenta devices.
The LTA is online, and the LonWorks network is commissioned and operational, but the Xenta groups remain offline.

Product Line

TAC Vista

Environment

Vista Server

Cause

• The group master controller may be offline, causing the entire Xenta group to report an offline status.
• Naming convention issues such as:
  • Use of spaces
  • Exceeding character limits
  • Use of unsupported characters (e.g., slashes)

Resolution

To resolve the issue, follow these steps:

1. Verify the group master controller is online.

2. Ensure no object name exceeds 20 characters, including:

   • LTA name

   • LonWorks group name

   • Xenta group name

   • Individual Xenta device names

3. Avoid using spaces in any names.

   • Use underscores (_) instead of spaces.

4. Do not use slashes (/ or \\) in names.

   • Replace with underscores (_) instead.

Additional Notes

• Consistent naming conventions are critical for proper communication between devices in the LonWorks network.
• If the issue persists after applying these steps, consider reviewing the network configuration or contacting support.