SISTEM PERANCANGAN LIFT TIGA LANTAI BERDASARKAN SELEKSI BARANG SECARA OTOMATIS MENGGUNAKAN PROGRAMMABLE LOGIC CONTROLLER (PLC)

The moderenization of the three panel control elevator unit is being PLC. As the logical principle of relay, PLC will process the programmecontinousiy and sequence (loop) that produce a programmeas the on/off condition, the internal coil output that being saved inside the data memory output and latch memory. The 3rd floor elevator prototype uses the censor limit switch, the photo diode censor, and PLC OMRON CPM 2A as the controller, and the programming using ladder graph CX Programmer 9.2. version. This control chain function is as the one direction electrical tides motor generator to pull ormove down the elevator, when expect the motor to move to the left or right or to stop spinning so PLC will send the data high (24volt) and low data (0volt) based on the expected condition at the controlling session in the other side. Thefinal result of three floors lift prototype based on programmable logic controller (PLC) is successfully done and tested. The lift is able to move to the first, second or to the third ground, and it is able to stop on the second or the third ground based on the height range of the items from the first ground. So the conclusion is that three floors lift prototype based on programmable logic controller (PLC) is functioning propely. Word keys : PLC, floor elevator, selection