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Chapter 3 Basic Functions
II-56
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A message of iSM is output to operation log and event log. The details of a log output are explained below.
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Log output function of iSM is as follows.
(1) Outputs messages to operation log.
(2) Outputs important messages to event log.
(3) Changes the output file when the size of an operation log exceeds the maximum.
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Operation log is composed of an outputting log file, its generation file (backup file) and a generation management file
saving the management information of generation file. An operation log is created on the log file saving directory
(installation directory\etc\log). A generation file has a structure that holds backup of a log file one by one and it is
created to a maximum of 99 files. However, if the number of generation files exceeds the maximum, the oldest file will
be overwritten.
These file changes and name changes are performed automatically, and the user does not need to pay attention.
Example: When 17 generation files have been created by the operation log.
iSM_Log17.log
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ew
Currently editing
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Generation files
Generation management file
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iSM_Log.log
(i) Name of the generation file being
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(ii) Name of the latest generation
iSM_Log01.log
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ame of the oldest generation file
(iii) Name of the generation
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ement file
iSM_Log.cnt