Abstract: An editor apparatus for programming industrial controllers in relay ladder language, the apparatus used to provide RLL logic to control a machine axis. The apparatus includes a display for creating an axis behavior profile that represents input devices, output devices, actuators, and required movements. The apparatus gleans information from the profile and, based on the information, creates modules that include logic required to provide a program section for controlling the axis. A compiler then compiles the modules to provide an RLL program section to control the axis.