Method regarding a data log related to a programmable logic controller (PLC)
AssigneeSiemens Industry, Inc.
InventorsMark Boggs, Steven Hausman, Temple Fulton, William Johnson
Life of this patent
Estimating the term…
Abstract
Certain exemplary embodiments can provide a method for utilizing a memory cartridge connected to a Programmable Logic Controller (PLC). The memory cartridge can comprise a plurality of memory segments. The method can comprise a plurality of activities comprising: providing a default identifying stamp for records in a data log file, a structure for the data log file stored separately from the data log file in the memory cartridge, and obtaining a request to provide the data log file.
Claims20
A method for utilizing a memory cartridge connected to a PLC, the memory cartridge comprising a plurality of memory segments, the method comprising a plurality of activities comprising:
- providing a data log file to the memory cartridge;
- and
- comparing a first data log record on the memory cartridge to a second data log record on the memory cartridge using an error checking technique.
A method comprising:
- responsive to a power failure and based upon a data log structure, comparing a first data log record on a memory cartridge to a second data log record on the memory cartridge using an error checking technique, the first data log record and the second data log record comprised by a data log file stored on the memory cartridge, the memory cartridge connected to a programmable logic controller (PLC), the memory cartridge comprising a plurality of memory segments, the data log structure stored separately from the data log file on the memory cartridge.
A machine-readable medium comprising computer-executable instructions for activities comprising:
- responsive to a power failure and based upon a data log structure, comparing a first data log record on a memory cartridge to a second data log record on the memory cartridge using an error checking technique, the first data log record and the second data log record comprised by a data log file stored on the memory cartridge, the memory cartridge connected to a programmable logic controller (PLC), the memory cartridge comprising a plurality of memory segments, the data log structure stored separately from the data log file on the memory cartridge;
- and
- automatically reading the data log file, said reading activity subsequent to a received user input regarding an option to erase the data log file after the reading activity, the user input received responsive to a prompt.
Dependencies are inferred from the claim text.