| The main contents of the disquisition is to use the Siemens S7 — 300 PLC to design mineral fanner automation supervision system.This system adopts advanced, spread sensor . This system adopts advanced mineral main fanner method which used to measure the runoff of the fanner .This system carried out to measure the function parameter of the fanner ,the electricity parameter of the appearance parameter at real time. Those parameter can carry out the long range communication.This system raised the automatic management level of the main fanner equipments, guaranteeing the economy of the main fenner equipments circulate credibility. For the management of the equipments and maintained ,this system can provide dependable scientific warranty.Take the fanner room as the the object in the design,this system carried out the the automation supervision and the design and the reformation of the managements of automatic circulate with nobody managing it.This system uses the high credibility PLC which used in industrial control and carries out the on-line monitor of the main fanner.This system communicats with the computer in central control room , which carrying out the long range surveillance of the fanner. The system resolved problem in the past system.Those laggard systems is too simple; the the surveillant precision of the parts of keys parameter( such as the runoff of the fanner) is lower and the contents is not overall;those system can't communicate with control center to carry on the information system gather, attaining automatic circulate with nobody managing it. |