Issue
When performing a Data Import using the Sigma Interface within EcoStruxure Building Operation (EBO), the process fails with the error:
"Failed to connect to server."
Product Line
EcoStruxure Building Operation, Satchwell BAS & Sigma
Environment
- Building Operation Workstation
- Satchwell Sigma
Warning
Potential for Data Loss: The steps detailed in the resolution of this article may result in a loss of critical data if not performed properly. Before beginning these steps, make sure all important data is backed up in the event of data loss. If you are unsure or unfamiliar with any complex steps detailed in this article, please contact Product Support for assistance.
Cause
This issue typically occurs when:
- The Sigma Transition Tool is installed on the Sigma server machine.
- The tool masks the actual version of the Sigma server and client.
- The required Sigma version is not installed prior to using the Transition Tool.
Resolution
To resolve the issue:
-
Verify the Sigma Version
- Open Windows Explorer and navigate to:
C:\Sigma\Bin - Locate
SigOp.exe(or similar executable). - Right-click → Properties → Details tab.
- Confirm the version is at least 3.46.57.
- Open Windows Explorer and navigate to:
-
If Version is Below Required (e.g., 3.45.nnn):
- Uninstall the Sigma Transition Tool.
- Upgrade Sigma to version 4.08 (build 3.46.nnn).
- Reinstall the Sigma Transition Tool.
-
Reattempt Data Import
- Once the correct version is installed and the Transition Tool is reinstalled, rerun the Sigma Data Import in EBO.
-
Remote Clients
- Ensure all remote Sigma clients connected to the server are also upgraded to the correct version.
⚠️ Important Notice
Sigma is not supported in EBO 2022 and later.
To continue supporting Sigma devices, you can implement a multi-version system:
- Keep Enterprise Servers with Sigma devices on Building Operation 3.2.
- Add a Building Operation 2022 or later Enterprise Central
- Upgrade the rest of the system to Building Operation 2022 or later.
You will not be able to upgrade EcoStruxure Building Operation servers that contain unsupported protocols, objects, or devices. Attempting to do so will result in failed upgrades or loss of functionality.
