This thesis presents a project to design and modify the program to control the function of the test machine motor and drive the escalator. This is a test machine needed for production.Using GX Developer Version 8 design, program control or Ladder
.In control test machine motor and drive the escalator. Including the design, function, safety of workers between. The machine's operation
key words:,,, GX Mitsubishi Developer PLC Drive unit tester
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