PLC is one of the main components in the automation machine, PLC programming can be done by engineers in general. Certainly every engineer has a different style of programming. We offering a simple, neat, and open PLC programming, so the machine can run well and easy for troubleshooting. We documented and explain for each program modification, and there is no program that we lock. We also received an upgrade project for obsolete PLC, eg. upgrade from PLC S5 to S7.