Issue
After a cold start of the IC-Lon or IC3-Lon controller, communication with other Lon network devices is lost.
Product Line
Satchwell BAS & Sigma
Environment
- Sigma IC-Lon Integration controllers
- Sigma IC3-Lon Integration controllers
Cause
The controller has undergone a cold start—either manually or automatically. When this happens, it may revert to a non-bound state if the necessary configuration file is not properly uploaded.
Resolution
To restore communication, ensure the NVConfig.bin file is uploaded from the controller to the Sigma server. This file contains the Lon binding information and is essential for proper network communication.
Steps to Upload NVConfig.bin:
- Open System Diagnostics on the Sigma server.
- Select the appropriate controller number.
- From the Options menu, choose Upload Files.
- Select and upload NVConfig.bin.
This action will overwrite the existing file in the controller folder. Upon the next cold start, the correct configuration will be downloaded to the controller, restoring its bound state.
Additional Notes
- The NVConfig.bin file is modified during the binding process using LonMaker.
- For detailed guidance on the engineering process of IC-Lon/IC3-Lon, refer to the Engineering Process Documentation.
End-of-Life Notice
The Sigma system is now out of its support period. It is recommended to consider transitioning to SpaceLogic - EcoStruxure Building Operation for continued support and enhanced functionality.
