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Modbus and DNP3 - What's the Difference? 

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Modbus and DNP3 are some of the more common communication protocols used in the Industrial Automation industry. But what is the difference between the two?
In this video, we showcase how the features of Modbus differ to that of DNP3’s, allowing our clients to understand which protocol may optimally suit their processes the best.
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#Modbus #DNP3 #SCADA

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29 сен 2024

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Комментарии : 23   
@ScadaHub
@ScadaHub 3 месяца назад
Your explanation is excellent. Perhaps you could enhance it by incorporating a demonstration using SCADA software, making it even more practical.👍
@azamkhalid7936
@azamkhalid7936 2 года назад
Very solid explanation of DNP3 protocol. Far better than most other vides. Great job! Thank you!
@acectrl
@acectrl 2 года назад
Thanks Azam for your positive feedback! Your support to our channel is appreciated!
@Anna-hf3pv
@Anna-hf3pv 10 месяцев назад
Are there examples of when Modbus would actually be more preferred? Are there any examples of data that don't necessarily need to be able to send alarm detections back to the master?
@acectrl
@acectrl 9 месяцев назад
Modbus is still widely used in plant/site automation where time-stamped data are mandated by the end users. For example, a manufacturing facility.
@mokhtarbadraoui4332
@mokhtarbadraoui4332 2 месяца назад
thank you it is very intersting
@sierossafaar8767
@sierossafaar8767 2 года назад
Thanks for making it simple and clear! Is there a way to convert Modbus output to DNP3 without hardware modules?
@acectrl
@acectrl 2 года назад
Hello Sieros, thank you for your question. There are indeed software to convert Modbus signals to DNP. However the software modules needs to be deployed on a computer (preferrable an industrial PC) with serial ports if the Modbus or DNP communicate in RS232 or RS485. For example, ABB MicroSCADA COM500 or COM581 is one the software. The cost of such module usually outweights the price of a hardware module. Hence, hardware would be our recommendation unless the amount of I/Os are significant.
@msz6458
@msz6458 2 года назад
Is there a way to secure DNP Protocol !!
@acectrl
@acectrl 2 года назад
The answer is yes. Suggest looking into DNP3 Secure Authentication. Any further questions you may have, please let us know.
@baker7741
@baker7741 Год назад
thans for info. but you didn't mentioned the buffering of data and the time stamped which the protocol of DNP3 support
@acectrl
@acectrl Год назад
Good points
@mahinablanc
@mahinablanc 2 года назад
Thanks for the video. I like it!
@acectrl
@acectrl 2 года назад
Thanks for watching!
@AbuBakar-pr6rq
@AbuBakar-pr6rq 11 месяцев назад
Thank you and Amazing representation
@acectrl
@acectrl 9 месяцев назад
So nice of you
@bivocom5540
@bivocom5540 2 года назад
Thank you for sharing, very helpful!
@acectrl
@acectrl 2 года назад
Glad it was helpful!
@3ashalemaroc
@3ashalemaroc 2 года назад
I think client and server is more appropriate than master abd slave. Remember that this architecture dates since last century.
@acectrl
@acectrl 2 года назад
Thanks, Mohamed, for your comment. It depends on what industry you are from. The client and server terminologies are commonly used in IEC 61850 world. Master and slave is still popular for DNP and Modbus as far as in Australia.
@3ashalemaroc
@3ashalemaroc 2 года назад
@@acectrl No sir. In IEC 61850 you have Goose which is relay to relay communication where you can publish data or subscribe to it. So you can't talk about client/server thats wrong, MMS in the other hand yes as the relay can send a buffered or unbuffered report to a client. It has nothing to do where we are from. How many times you hear Master Slave outside of the tech world? That should give you an idea that the use is not appropriate.
@acectrl
@acectrl 2 года назад
​ @Mohamed Moussamir, we acknowlege and really appreciate your comment on IEC 61850. However this video is about DNP3 and Modbus where Master and Slave terminologies are very commonly used in engineering. For your interest, a web link (below) provides further information: www.dnp.org/About/Overview-of-DNP3-Protocol
@obscuresc1699
@obscuresc1699 2 года назад
@@acectrl Client/Server are the correct terms as specified by the Modbus Organisation as of 2020.
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