ABSTRACT
Fieldbuses originally created the basic prerequisite for distributed automation systems in the manufacturing industry. PROFIBUS is an open, digital communication system with a wide range of applications, particularly in the fields of factory and process automation, transportation, and power distribution. It is suitable for both fast, time-critical applications and complex communication task. PROFIBUS has a modular structure (PROFIBUS Tool Box) and offers a range of transmission and communication technologies, numerous application and system profiles, as well as device management and integration tool. Manchester encoded, Bus Powered (MBP) transmission technology according to IEC 61158-2 type 1 is used with PROFIBUS PA. The same procedure is also used with other fieldbuses, such as the Foundation Fieldbus (FF). MBP provides communication and power on the same two wires, saving considerable installation costs because power and communication do not require separate lines.
