RFC 4072S
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PHOENIX CONTACT 108580_en_02
/opt/plcnext/lttng_traces Directory for storing trace files
The directory is created during runtime of the trace controller when the trigger
function for storing the trace files is called for the first time. Each time the trigger
function of the memory is called, a new subdirectory (trace directory) for storing
the current trace data is created.
The designation of a trace directory is structured as follows:
YYYYMMDD_hhmmss
E.g.: /opt/plcnext/lttng_traces/20190418_190615/<trace_data>
The memory functions as a ring memory. If the configured maximum memory
space is exceeded, the respectively oldest trace directory is deleted.
/opt/plcnext/backup Directory download change operations
The directory is used for creating a backup of the project directory. In the event of
an error, the content of the backup directory is restored. The backup directory is
created following the first successful project download and following every
successful project download.
/opt/plcnext/retaining Directory for managing residual data
/opt/plcnext/shadowing Directory for internal storage of copies of C++ user libraries that have been
configured in PLCnext Engineer and downloaded to the controller.
/opt/plcnext/profinet Directory for storing temporary PROFINET files.
Table 2-11 Storage of firmware components in the root file system
Directory in the root file system Description
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