The development of automation in the industry is accelerating rapidly. The presence of automation is a technology that is very helpful in increasing production. Automation cannot be separated from the existence of a control system to regulate or process an instruction or order. The Modular Production System is a station unit consisting of various types of stations that simulate production system designs on a small scale before being realized in real situations. The work process of the Modular Production System is controlled using a PLC. PLC needs to be programmed to manage the work process of the Modular Production System. The programming language commonly used in PLC programming is ladder diagrams. The existence of a control system on the Modular Production System using PLC will make the Modular Production System run automatically. It can communicate with other Modular Production Systems to become more efficient. Therefore this design discusses controlling the Modular Production System using a PLC with a ladder diagram. The distribution stations and pick and place stations are selected for the Modular Production System. With a control system on the Modular Production System distribution station and pick and place station, the Modular Production System can work automatically and communicate with each other between stations. The result of the design is an increase in the efficiency of the system cycle time and process accuracy.