Flow chart programmation for industial controllers, especially motion controllers

摘要

To debug such a program: a user initiates a debug process from a flow chart, accordingly each icon is assigned a suspend command, the debug process is started, program flow continues until the next suspend command, the user can see where about in the work flow he is, the work flow is restarted until the next suspend command and the whole process can be stepped through. The programming method involves a user linking control structures and function blocks to flow chart (MCC) steps using a suitable editor. Each control structure or function block has a corresponding graphical element or icon representing the action to be undertaken. The test control mechanism allows a user to change operation from a run time system to single step mode or breakpoint mode.