Control program code conversion

A non-transitory computer-readable medium having stored thereon program instructions that, in response to execution, cause a system comprising a processor to perform operations, the operations comprising:

• monitoring input and output states of an industrial controller while the industrial controller executes an initial control program code version to operate a machine system;
• generating a functional design specification for the industrial controller based on at least an analysis of the input and output states of the industrial controller;
• converting an instruction set of the industrial controller into a new instruction set for a new industrial controller;
• identifying one or more equivalent instructions in the new instruction set for the new industrial controller that are equivalent to instructions in the instruction set of the industrial controller;
• and
• generating a new control program code version for execution on the new industrial controller that performs equivalent functionality of the industrial controller while executing the initial control program code version based on at least the functional design specification for the industrial controller and the one or more equivalent instructions in the new instruction set for the new industrial controller that are equivalent to the instructions in the instruction set of the industrial controller.

A system for converting an initial control program code version to a new control program code version, the system comprising:

• a memory that stores executable components;
• and
• a processor, operatively coupled to the memory, that executes the executable components, the executable components comprising program instructions stored on the memory that, when read and executed by the processor, direct the processor to at least:
• monitor input and output states of an industrial controller while the industrial controller executes the initial control program code version to operate a machine system;
• generate a functional design specification for the industrial controller based on at least an analysis of the input and output states of the industrial controller;
• convert an instruction set of the industrial controller into a new instruction set for a new industrial controller;
• identify one or more equivalent instructions in the new instruction set for the new industrial controller that are equivalent to instructions in the instruction set of the industrial controller;
• and
• generate the new control program code version for execution on the new industrial controller that performs equivalent functionality of the industrial controller while executing the initial control program code version based on at least the functional design specification for the industrial controller and the one or more equivalent instructions in the new instruction set for the new industrial controller that are equivalent to the instructions in the instruction set of the industrial controller.