For corporations and industrial establishments with modern and streamlined regulations and control, updated and secure service and maintenance procedures are an absolute necessity.
The subject of my thesis is the integration of a service function into the control system of the grain silo in Dunaföldvár, the design of the service function, its programming onto a Siemens S7 PLC universal controller and the planning and programming of human-machine relations onto a Siemens KTP600 operator interface, as well as the operation and testing of the function.
The service function is indispensable for a company in completing maintenance procedures faster and safer, as up until now, the engines, latches and control valves could only be started in manual mode and only from the operators' room, thus making the repair operations neither fast nor safe enough.
I will also introduce the Simatic Manager and the WinCC Flexible integrated development environments and state their benefits when using programmable logical controllers and display panels manufactured by Siemens. I will review the synthesis of the operating control system - which I expanded with the service function - , the steps of designing the maintenance processes, the modifications of the existing program and the designing and programming of the human-machine relations onto the operator panel. In the end, I will also review the installation of the now-complete program, the tests and the possibilities of development.