1. An industrial controller, comprising: a memory that stores computer-executable components; and a processor, operatively coupled to the memory, that executes the computer-executable components, the computer-executable components comprising: an enhancing component configured to generate a first controller engine instance having a first security level for control of an industrial process and a second controller engine instance having a second security level for control of a safety device; and a redundancy component configured to generate one or more backup controller engine instances for at least one of the first controller engine instance or the second controller engine instance, wherein the redundancy component determines a quantity of the one or more backup controller engine instances based on ratio data maintained in a data store specifying a ratio of backup controller engine instances to primary controller engine instances.