Method for consistent storage of data in an industrial controller

摘要

A system and method for employing a file system and file system services on the industrial controller. The file system allows industrial control programs to implement many functions previously performed within the industrial control program and stored in the same memory as the industrial control program. An execution engine is provided that interprets instructions included in an industrial control program. The instructions utilize services in the file system for including user defined routine files loaded from local or remote locations, to load and unload recipe files from local and remote locations, to log and retrieve measured data and trend data to files at local or remote locations, to select different operating systems and to select a running program from a plurality of running programs utilizing the file system.

主权项

1. An industrial controller comprising:
a first memory adapted to store a first industrial control program; a processor configured to execute the first industrial control program during a runtime mode of the industrial controller; a file system storable in the memory and including file system services; and an execution engine storable in the memory and adapted to process one or more ladder logic instructions of the first industrial control program as the first industrial control program is being executed during the runtime mode, wherein processing of the one or more ladder logic instructions by the execution engine during the runtime mode causes the industrial controller to utilize at least one of the file system services to:
access, via a web service, a remote file located on a second memory that is remote from the industrial controller,retrieve an operating system from the remote file,load the operating system on the industrial controller for execution of a second industrial control program on the industrial controller, andfrom a recipe file defining two or more process parameters stored in the second memory or a third memory that is separate from the first memory, load the two or more process parameters defined by the recipe file to the first memory to facilitate implementation of a recipe by the second industrial control program.