Sigma Low Level Alarm – Operlist.txt File Missing

[Product_Support]

Issue

Users may encounter 'Operlist.txt file missing' alarms in the Sigma Alarm Manager, even though the file appears to exist on the controller.

Product Line

Satchwell BAS & Sigma

Environment

Sigma 4.07 (upgraded from BAS2800+ or Sigma versions prior to 4.04)

Cause

Starting from Sigma version 4.04, the system no longer requires manually created operlist.txt files. Instead, the Sigma server automatically generates a dummy operlist.txt file for each controller.

However, if a manually created operlist.txt file already exists in the controller’s or outstation’s folder, Sigma will use that file instead of the dummy one, potentially triggering the alarm.

Resolution

To resolve the issue:

1. Delete existing operlist.txt files from all controller and outstation folders:

   • Use Windows Search to locate all instances of operlist.txt within the directory:

     C:\Sigma\Data
     

   • Delete all found files.

2. Download the dummy operlist.txt file to all controllers:

   • Open Sigma System Diagnostics.
   • Initiate the download process for operlist.txt.
   • The system will automatically create and deploy a dummy file to each controller/outstation folder.