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📄FIFO

📁 FIFO (First-In-First-Out) Functionality

The mapp File Framework 6 comes with the option of enabling a FIFO (first-in-first-out) for a file device of your choosing.

There are a few key details regarding this feature:

• The FIFO deletes the oldest files once the file device starts filling up. There are two configuration options for you to define what "filling up" means for your application. A dialog box on the HMI allows you to choose between the following:

  1. Define a maximum memory size and delete the oldest file once the total file device contents exceeds this size.

  2. Define a maximum number of files and delete the oldest file once the number of files on the file device exceeds this value.

• The user must select one file device for the FIFO to be active on.

• Once activated, the FIFO will check this file device periodically for size and number of files.

• The FIFO will monitor all files in the root directory of the selected file device.Files contained within any sub-folders will not be checked.