Siemens Industry, Inc.

Siemens Energy & Automation, Inc.

William H Johnson

Temple Luke Fulton

Mark Steven Boggs

Steven Michael Hausman

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.

Method for utilizing a memory device for a programmable logic controller (PLC)

Method regarding a memory device for a programmable logic controller (PLC)

Method regarding a data log related to a programmable logic controller (PLC)

Certain exemplary embodiments comprise a method comprising a plurality of activities comprising: at a programmable logic controller comprising a memory device, receiving a request to create a data log that is adapted to receive data from a process; initializing the data log by writing to the data log a head marker code in the record type field of a first record and an invalid code in the record type field of a last record of the data log, the last record logically preceding and logically adjacent to the first record.

Methods and structures for utilizing a memory device for a PLC

Method of maintaining a data log related to a Programmable Logic Controller (PLC)

Certain exemplary embodiments can provide a method for utilizing a memory cartridge connected to a PLC, the memory cartridge comprising a plurality of memory segments. The method can comprise a plurality of activities comprising: providing the memory cartridge, the memory cartridge housing a memory module, and providing to the memory cartridge a project file. The project file can comprise a user program, a recipe comprising a plurality of input values, each input value from the plurality of input values corresponding to a process variable, and a structure of a data log file stored separately from the data log file.

Growing community of inventors

Johnson City, TN, United States of America

William H Johnson