Method and device for reconstructing the process sequence of a control program

A memory element storing a computer program executable on a computing device to perform a method for reconstructing a sequence of processes of a control program executable by one of a computing device from contents of a first table and a second table, the control program being subdivided into a plurality of tasks, each of the plurality of tasks including at least one process, the method including:

• storing, during execution of the control program and for each completed task, an identifier for one of the at least one process last executed before starting the completed task, in the first table;
• storing an order of respective ones of the completed tasks in the second table;
• generating at first, from the contents of the first table and the second table, a third table containing, for a new task, the identifier for one of the at least one process last executed before the start of the new task;
• and
• reconstructing a complete process sequence of the control program from the third table using the order of execution of the at least one process of the plurality of tasks.

A computer program executable on a computing device to perform a method for reconstructing a sequence of processes of a control program executable by one of a computing device from contents of a first table and a second table, the control program being subdivided into a plurality of tasks, each of the plurality of tasks including at least one process, the method including:

• storing, during execution of the control program and for each completed task, an identifier for one of the at least one process last executed before starting the completed task, in the first table;
• storing an order of respective ones of the completed tasks in the second table;
• generating at first, from the contents of the first table and the second table, a third table containing, for a new task, the identifier for one of the at least one process last executed before the start of the new task;
• and
• reconstructing a complete process sequence of the control program from the third table using the order of execution of the at least one process of the plurality of tasks.

A device for reconstructing a sequence of processes of a control program executable by one of a computing device from contents of a first table and a second table, the control program being subdivided into a plurality of tasks, each of the plurality of tasks including at least one process, the device comprising:

• a first storing arrangement to store, during execution of the control program and for each completed task, an identifier for one of the at least one process last executed before starting the completed task, in the first table;
• a second storing arrangement to store an order of respective ones of the completed tasks in the second table;
• a generating arrangement to generate at first, from the contents of the first table and the second table, a third table containing, for a new task, the identifier for one of the at least one process last executed before the start of the new task;
• and
• a reconstructing arrangement to reconstruct a complete process sequence of the control program from the third table using the order of execution of the at least one process of the plurality of tasks.