System Management Information Relating To Logging Function; System Management Information And Operation; Clearing Management Information - Panasonic FP7 User Manual

4.3 System Management Information Relating to Logging
Function

4.3.1 System Management Information and Operation

 The PLC manages files as follows. So, the PLC performs operations based on the stored
management information even if an SD memory card is removed during logging, and
another SD memory card in different conditions from the conditions managed in the PLC is
inserted.
 Writing data into an undetermined file "specified file name (------current------).csv" is executed
every time specified records are stored. The number of written records can be confirmed in
the system monitor area (SM212 to SM242).
 The number of generations of determined files is managed during the logging operation. The
number of determined files can be confirmed in the system monitor area (SM243 to SM258).
 The determined date is managed in the internal memory at the time of file determination, and
the time data of the oldest file is stored in the system monitor area (SM259 to SM290).

4.3.2 Clearing Management Information

 Clearing management information
Log file management information of the PLC is cleared in the following cases.
 When LOG n settings are deleted or all log settings are initialized from the tool software
FPWIN GR7
 When a buffer allocation different from stored data is downloaded, all log settings are
initialized.
 When a LOGn definition different from stored data is downloaded, only the different LOG n is
cleared.
KEY POINTS

If the above clearing operation is performed, log file management
information is initialized, and files remained in the SD memory card are
regarded as non-existent. Delete files beforehand, and use it.

When restarting logging with the same condition without changing setting
information, the operation continues with the previous system information,
the number of generations (SM243 to SM258) and the oldest time data of the
file (SM259 to SM290). After restarting logging, the number of generations is
added to the data before the restart, and the existing value is held for the
oldest time data.
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4.3 System Management Information Relating to Logging Function