Types of ProfiBus (Process Field Bus) (part 2)
Continued from the article: Types of ProfiBus (Process Field Bus) (part 1), below are other 2 types of ProfiBus: ProfiBus DP and ProfiBus PA.
ProfiBus DP
This type of ProfiBus is more universal, called ProfiBus DP (Decentralized Periphery). ProfiBus DP (Decentralized Periphery) is much simpler and faster. ProfiBus DP is used in the overwhelming majority of ProfiBus application profiles in the industry today. Application profiles allow users to combine their requirements for a specific solution.
ProfiBus DP has three separate versions. Each version of ProfiBus DP, from DP-V0 to DP-V1 and DP-V2, provides some newer, more complicated features.
ProfiBus PA
ProfiBus PA is a protocol designed for Process Automation. In fact ProfiBus PA is a type of ProfiBus DP Application profile. ProfiBus PA standardizes the process of transmitting measured data. But it does hold a very important unique characteristic. ProfiBus PA was designed specifically for use in hazardous environments.
In most environments, ProfiBus PA (Process Automation) operates over RS485 twisted pair media. This media, along with the PA application profile supports power over the bus. But in explosive environments, the power can lead to sparks that induce explosions. To handle this, ProfiBus PA can be used with Manchester Bus Powered technology (MBP).
