Profibus Protocol Implementation Over mInts

Abstract

Industrial field work required monitoring and attaching of electrical heavy Equipments, measurements and analysis of electrical functions and systems. Evaluation of equipment and communicating data security are required. mINT I/O is qualified for all requirements. mINTs are innovative simple low cost solution for distributed I/O requirements. The I/O system consists of stand alone Digital and Analog - Input and Output modules which are connected together on RS 485 two wire multi-drop network. The modules communicate using the MODBUS-RTU protocol All (Digital and Analog) IO modules plug directly onto an industry standard. Modbus and Profibus are popular field communication protocols. Now a days Profibus-DP technique is widely applied in the field of industrial control. Profibus supports factory and process automation as well as drive applications with the same consistent communication protocol named Profibus DP. Which is lake in Modbus loaded mINT devices. This enables mixed (hybrid) applications, where continuously running processes. A Profibus system uses a bus master to poll slave devices distributed in multi-drop fashion on an RS485 serial bus. This thesis shows a construction of Modbus-RTU to Profibus-DP converter with the details of its initialisation software.