Panasonic FP0H User Manual

Also see for FP0H Series: User manual User manual User manual Quick start guide Operation manual

Contents

Panasonic FP0H User Manual Manual pdf 50 page image

Logging Operation4-84.3 System Management Information Relating to LoggingFunction4.3.1 System Management Information and Operation• Files are managed in the PLC as follows. The PLC performs operations based on the storedmanagement information even if an SD memory card is removed during logging, andanother SD memory card in different conditions from the conditions managed in the PLC isinserted.• Writing data into an undetermined file "specified file name (------current------).csv" is executedevery time specified records are stored. The number of written records can be confirmed inthe special data registers (DT90640 to DT90643).• The number of determined files (generations) of determined files is managed during thelogging operation. The number of determined files can be confirmed in the special dataregisters (DT90660 to DT90663).• When the file is determined, the determined date is managed in the internal memory. Thetime data of the oldest file is stored in the special data registers (DT90680 to DT90687). Theclock data is the number of seconds accumulated from 00:00:00 on January 1, 2001.4.3.2 Clearing Management Information Clearing management informationLog 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 softwareFPWIN GR7• When a buffer allocation different from stored data is downloaded, all log settings areinitialized.• When a LOG n definition different from stored data is downloaded, only the different LOG nis cleared.KEY POINTS• If the above clearing operation is performed, log file managementinformation is initialized, and files remained in the SD memory card areregarded as non-existent. Delete files beforehand, and use it.• When restarting logging with the same condition without changing thesettings, the operation continues with the previous system information, thenumber of generations and the oldest time data of the file. After restartinglogging, the number of generations is added to the data before the restart,and the existing value is held for the oldest time data.