If you do a little searching here on the Forum, you will find that a special degree of scorn and disgust is reserved for students who post their homework assignments and show no effort.
Please don't be one of those guys. There's still time.
The assignment includes a list of deliverables:
Ø[FONT="] [/FONT]design software that is valid and that simulates the safe control of the industrial process
Ø[FONT="] [/FONT]correctly allocate PLC input and output addresses
Ø[FONT="] [/FONT]correctly enter the program into the PLC
Ø[FONT="] [/FONT]edit the PLC program
Ø[FONT="] [/FONT]demonstrate effective testing procedures
Ø[FONT="] [/FONT]demonstrate the correct operation of the PLC program via the PLC indicating LEDs or an existing mimic panel
Ø[FONT="] [/FONT]produce a report that includes the following:
·[FONT="] [/FONT]a description of the control system for the given process
·[FONT="] [/FONT]allocation of PLC inputs and outputs
·[FONT="] [/FONT]a ladder diagram of the PLC program
·[FONT="] [/FONT]an explanation of the operation of the program
·[FONT="] [/FONT]an explanation of the safety features that have been incorporated in the application of the PLC
Only one of those is a ladder diagram. Since you claim to "understand the process", why don't you show the work you have done already, and maybe somebody will be inspired to assist you with entering the RSLogix 500 ladder code.
Writing ladder code is the last thing you should do when defining an industrial control process. The first thing is called a P&ID: Piping and Instrument Diagram. In simplified format, it's a diagram showing the process and the instruments that you're using, like sensor and motors and pumps and valves.
Some automation engineers like to write narratives, others use flowcharts.
Start at the beginning, with the description of the instruments involved. If you have physical hardware you're going to test this on in a school lab, describe that hardware with part numbers and details.
Scotsmen are the finest engineers in the world and you've got a tradition to uphold.