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Understanding the Profibus and its Applications

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By Prathima

Profibus (Process Field Bus)

Profibus may be a standard communication field-bus which is employed to use and spread the utilization of bit-serial in Automation field supported requirement of the sector device interface. Now a days There are two sorts of profibus utilized in industry. it's characterized by the cabling of purple single –pair RS485. Those cable use the quality DB9 or m12 connectors.




 Profibus DP(Decentralized Peripherals)- it is faster protocol profibus ,this is made for the communication between profibus masters and their remote I/O slaves. it's also operate using Sensors and actuators by employing a centralized controller in production industry to form the method control automatically.

It has high data speed, low connection cost , it's huge application within production automation are usually realized by remote of I/O, frequency converters, Sensors and actuators. PROFIBUS DP is standardized under IEC 61158, which guarantees compatibility with devices from various manufacturers

Profibus connector

Profibus PA (Process Automation)- It is utilized in the Automation field to watch measuring equipment via process system in automation applications. it's data transmission rate of 31.25kbit/sec, So still PA uses an equivalent protocol as DP (Decentralized Peripherals) and it's linked to a DP network employing a coupler devices. This works much faster as backbone network for transmitting process signals to the controller. So this shows that DP and PA can work tightly together in hybrid applications where process and Automation networks operate.




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