PLC program design using state diagram method on insert nut installing machine

A method that can solve the solution of creating a program on a sequential machine includes the state diagram method. To solve the solution of sequential machine automation, it is not enough to use a flow chart as a problem-solving method. The application is in the form of an insert nut installation machine for connecting or joining learning sheet plates with PLC controllers, which is the object of research in this paper. The programming language used is Ladder Diagram (LAD). The state diagram method is applied as an alternative to the Ladder Diagram program design and compared with conventional algorithms such as flow charts. The final result is the design and implementation of the Ladder Diagram PLC program on the Insert Nut Installing Machine. As a result of using the state diagram method, programming becomes faster, more efficient and safer.