Design And Research On Electricity And Control System Of FOCKE Packing Machine Based On PROFIBUS Field-bus

Programmable Logic Controller(PLC) is a kind of control system which bases on the processor and possesses comprehensive functions such as Boolean calculation, control and network. By adopting a bidirectional serial digital communication system, the field bus enables the system communication to realize an open digital and multi- spots communication goal.This article mainly analyzes the disadvantage of the original control system and introduces the new one as well as the advantage of the programmable controller in the control system. At the same time, it also illustrates the superiority of this kind of communication by introducing the PROFIBUS field bus. Take the transformation of FOCKE packaging machine as an example, the main content is as follows:◆1st, To analyze the PLC control system of S5 series, and determine the concrete functions that the new PLC control system hopes to achieve as well as how to achieve the goal through studying the work program of the original one;◆2nd, To demonstrate the advantage of the field bus in the process of digital alternation by introducing the principle agreement of field bus PROFIBUS;◆3rd, To achieve each function of the original control system through Using Siemens's PLC control system in the design of hardware and STEP 7 in the software as well as designing and compiling control system of FOCKE packaging machine;◆4th, To use FM455 for controlling temperature not only can meet the system's severe request for temperature and efficiently avoid many demerits of the temperature control instrument but also can bring convenience for operation and maintenance;◆5th,To use the InTouch configuration software to compile monitor and control program can accomplish the goal for Real-time surveillance and control of the production line, while setting some parameters can provide a powerful alarming function.