The RSLogix 500 software is a tool to design and implement ladder programs for the Allen-Bradley SLC 500™ and MicroLogix™ family of processors, such as the Programmable Logic Controller (MicroLogix), Model 46964. It is a Windows®-based application, produced by Rockwell Software, that allows PLC programmation using a personal computer. The free-form ladder of RSLogix 500 lets the student concentrate on the application logic rather than on using the proper syntax when editing programs. Several other features of RSLogix 500, such as a project verifier, drag-and-drop editing, and search-and-replace functions, greatly facilitate PLC programming. The PLC can be programmed via either a RS-232 port or an Ethernet port on the PLC processor. This software comes with RSLinx™ which provides connectivity between the PLC and the PC-type computer. The software is available with either an educational license (Model 3245-C) or as a commercial version (Model 3245-D).