Method and apparatus for communicating transactions between and industrial controller and a programming interface

摘要

An industrial control system (10) includes an industrial controller (12) and a programming interface (28). The industrial controller (12) maintains a control program for interfacing with a controlled process. The programming interface (28) is operable to communicate a transaction (30) to the industrial controller (12). The transaction (30) includes a plurality of operations for modifying the control program followed by a commit transaction command. The industrial controller (12) is operable to preprocess the plurality of operations, designate the plurality of operations with a pending status, and commit the operations and clear the pending status responsive to receiving the commit transaction command.