What is Fieldbus?

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In this video, you will learn about Fieldbus.

Fieldbus isn’t really one thing but more of a collection of things.

Fieldbus is a group of protocols that are used in the industrial arena.

The Fieldbus protocols have been standardized as IEC 61158.

Basically, Fieldbus works on a network that permits various topologies such as the ring, branch, star, and daisy chain.

Prior to Fieldbus, industrial controller systems were connected using RS232 serial communications. As you know, serial communications allowed only two devices to communicate.

Whereas today, the Fieldbus connections are more closely compared to the typical Ethernet connections where you can connect multiple field devices to a single connection point that would then connect to the controller.

However, Fieldbus is not a connection type, per se, but instead, a description used to indicate a group of protocols.

There are several protocols in the group such as ControlNet in the Allen Bradley family, Modbus, Profibus, EtherCAT, HART, CIP, and many more.

A primary benefit of Fieldbus is for field connected devices. For instance, consider you have several field devices that are quite a distance from your controller.

With Fieldbus devices such as sensors, motors, lamps, switches, these devices are connected to an “I/O data block”, which is then connected to a “field distribution device”, which is connected to a Fieldbus power supply, then finally connected back to the Programmable Logic controller.

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I have an exam in three days about ethernet, profibus, plcs, etc. these videos just saved my year. Thanks!

svwtsvfcb

I believe that's how you do business. You provide value to potential customers first then they'll come to you when they need help. Excellent video!

FrankysSteve

For me As instrumentation and control engineer your videos are very helpful thanks for help sir and please upload more videos

jayrajsinh

Really like your videos as they are short and to the exact point ....

tusharkodlinge

You learn more than just PLCs with realpars. You get stuff that go alongside it as well.

renegadeflower

How to provide some diagnostic when there is some tripping of drives without any fault indication in the drives and has to establish it due some disturbance due to communication between drives and DCs
Any diagnostic possible
Without any diagnostic both Electrical and Instrumentation people unable to come any conclusion for the cause of tripping

narayanswamy

Very useful. Looking at signing up for more.

ericjacobson

The standard for communication protocols at 0:12 in the video is IEC 61185. Should this be not IEC 61850 instead?

Jansk

great video as always would you please make a video on CAN bus protocol.
Thanks in advance

naumanali

Please make video specifically in foundation fieldbus

MdtarikSaiyed-wkhj

Would it be possible for y’all to do one of these for Sercros? We use this type of network for our older Rexroth servo drives.

craiglinn

Another Great Video Thank you !! Could you please make a video about SIMOTION and there application in the industries ?

amrouche.abdesselam

Nice video! A video on CANopen would be great.

speggeri

Thanks for the vídeo! Where can i find which protocols accept each brand of plc?

omarSCC

muy buenos sus videos, me gustaría suscribirme a sus clases, pero esta todo en ingles. No tienen una plataforma en español
Gracias

jaimefernandohormazabalsan