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Capture a modbus trace log in SBO


There is a need to capture a log that shows the Modbus communication in the AS or ES in order to troubleshoot an issue


AS Automation Server

ES Enterprise Server


When troubleshooting modbus issues in an AS or ES it can be helpful to see the communication


  1. Navigate to [AS/ES name]/System/Modules/Trace/Loggers/nsp/
  2. Right-click "" and choose properties.
  3. Under Level, change from "Information" to "Trace", then click ok.
  4. Let it run a few minutes. If there are some user input needed to recreate the modbus issue, do it.
  5. Retrieve the log by right-clicking [AS/ES name]/System/Modules/Trace/TraceSettings and choose Trace settings->Get trace log. 
  6. Save the log file somewhere you'll find it later.
  7. Change log level back to "Information" (reverse step 3). 
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Last update:
‎2018-09-06 09:00 AM
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