Process Field Bus is a standard for field bus communication in automation technology. There are two variations of PROFIBUS in use today; the most commonly used PROFIBUS DP, and the lesser used, application specific, PROFIBUS PA:
- Profibus DP (Decentralized Peripherals) is used to operate sensors and actuators via a centralized controller in production (factory) automation applications. The many standard diagnostic options, in particular, are focused on here.
- Profibus PA (Process Automation) is used to monitor measuring equipment via a process control system in process automation applications.