System logging

Location:

<WorkspaceDirectory>\LogFiles\nxaOPCSystem.35.log

Within this log file, all relevant event and system messages that are logged by the server application are stored. During server start up, a new, empty system log file is created by the server. However, the old system log files are not lost – after each server start up, the old system log file is renamed to "nxaOPCSystem.35.<timestamp>.log" where <timestamp> is the time of the current server start up. If an unexpected server behaviour or other problems during runtime are observed, this server log file is a good starting point for analyzing the reason of the problem. Since almost all information of the server is logged within this file, analyzing this file helps to solve the issue in most cases.

Example:

 INFO;05/03/12 08:11:35.234;SERVER_ENGINE;Licensed Gateway Number: 32;0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'OPC.GroupAddressType' = '2Level';0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'OPC.AsyncReadFromDevice' = 'FALSE';0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'OPC.AsyncWriteConfirmation' = 'FALSE';0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'OPC.AsyncRefreshFromDevice' = 'FALSE';0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'OPC.AsyncTimeout' = '10';0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'KNX.Timeout' = '3';0
 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'SYS.EnableDeviceManager' = 'TRUE';0 INFO;05/03/12 08:11:35.249;SERVER_ENGINE;Option 'SYS.GatewayConnectionTimeout' = '100';0

Each line corresponds to one logging entry.

Column	Meaning	Description

Column	Meaning	Description
1	Log Level	This column defines the log level of the event. This can be "INFO", "WARNING", or "ERROR".
2	Timestamp	This column specifies the point in time when the event occurred.
3	Module Name	This column defines the module name that causes the event.
3	Message	This column shows the text of the event message.