Future Design MCT-CM, Руководство пользователя

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If a file name is specified or logging on Program operation is enabled, each file will begin with the same prefix.
Thus, multiple files can begin with the same 8 characters this limiting the maximum number of files that can be
stored. At a frequency of 3 per day, 7 days a week for example, the maximum 999 files would be reached
within one year. It is recommended that a quarterly maintenance schedule be adopted to copy and delete all
data files from the MCT through either the USB file transfer or FTP backup utilities to prevent the maximum file
number from being reached.
If the maximum number of files is reached, the MCT
will display the alarm message “
Data file error. SD card full
or missing.
” and data logging will be disabled. Note that there is still sufficient memory space on the SD card;
however, due to the maximum number of files being reached, no more files can be placed in the data log folder.
Regular backup and removal of files from the MCT will prevent this from occurring.
It is also highly recommended to backup and delete alarm and audit files as well. While it is possible to store
years of files, the time it will take to copy the files once the time has come, could take hours due to the large
number of files. The MCT file browser is also limited to a total of 650 files. If the number of alarm files or audit
files exceeds the 650 file limit, you will be unable to open and view alarm or audit files on the MCT. They will
have to be exported via USB or FTP in order to be viewed.
More frequent backups will also require less time to perform. The speed at which files can be transferred is
more dependent on the number of files than the size of the files. A fewer number of large files takes less time
than a large number of small files.
8.5 FTP/FileWeb/DataWeb Interface
The FTP/WAN screen allows the user to configure automatic back-up of all data files contained in the MCT
memory to a user designated FTP or secure FileWeb site (https://). When enabled, the MCT will automatically
back up all data log files, alarm files and audit trail files at 2:00AM each day. With the optional delete files
selection, the MCT will then automatically delete the files from its internal memory after back up. This will
maintain MCT memory automatically, so that continuous data logging can be performed without filling up the
available memory space.
The MCT also offers a DataWeb LAN/WAN/Cloud interface. This allows the MCT to transfer data directly into
a server’s data base rather than using file-based data solutions. The DataWeb interface provides the transfer
of secure (https://), real time data which can be shared and viewed across networks for real time manufacturing
data systems interface.
NOTE: Setting up an FTP site on your network may require authorization and/or assistance from your network
administrator. Contact your network administrator for proper settings and authorization from your
network server (if required) to allow the MCT to connect to the designated FTP site.