Abstract: An apparatus includes a programmable logic controller capable of receiving input data from and/or providing output data to at least one device in a process control system. The programmable logic controller is also capable of executing compiled code. The apparatus also includes a memory capable of storing source code corresponding to the compiled code. In addition, the apparatus includes a processor capable of storing the source code in the memory. The apparatus may further include a wireless radio capable of communicating over a wireless network. In particular embodiments, the programmable logic controller and the processor may form a single functional unit. In other embodiments, the processor and memory may operate in place of the programmable logic controller.