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Fieldbus vs 4-20mA

S Bharadwaj Reddy
The sensors and actuators that are connected to the inputs and outputs (IO) of a Programmable Controller or PLC are normally mounted in the plant. Therefore the IO connections of...

Introduction to Fieldbus Function Blocks

S Bharadwaj Reddy
Introduction A fieldbus system is a distributed system composed of field devices and control and monitoring equipment integrated into the physical environment of a plant or factory. Fieldbus devices work...

What is a Fieldbus Terminator and How Does it Work?

S Bharadwaj Reddy
First let’s define exactly what a fieldbus terminator is. A fieldbus terminator is a component of a fieldbus system that is the equivalent of a 1 µF capacitor and a...

Difference between Fieldbus and Profibus

S Bharadwaj Reddy
The short answer is: although both “buses” are very similar, they are not the same! Here is what’s different: PROFIBUS is the overall name for a process fieldbus solution that...

Interview Questions on Fieldbus Communication

S Bharadwaj Reddy
The following are the list of interview questions on fieldbus communication Fieldbus Interview Questions and Answers Fieldbus Questions Why is the H1 bus speed 31.25kbps, not something different, suitable for closed...

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