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Modbus VB sample code
Created Date: September 19,2006
Created By: Ken
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Hi everyone, Does anybody have any VB code they could post that shows how to send and receive data using Modbus protocol. Thank you in advance for any and all help. Bet regards, Ken
Created Date: September 27,2006
Created by: Ken
Judging from the lack of responses it would seem that no one has any code to post or it's just to involved to get into it in this forum. I'm new to modbus and would like to see some code so I can better understand how it works. I 've read the standards and I can follow them to some degree but, looking at some VB code with comments would go a long way in helping me out. Thank you for any help you can give me on this subject.
Regards,
Ken
Created Date: September 27,2006
Created by: bcarlton
Go to http://www.modbus.org for information on the MODBUS protocol. Then you can start into writing the extensive library needed to implement this code.
Created Date: September 27,2006
Created by: Tech Guy
I'd try over on the MODBUS.ORG forums.
Created Date: September 28,2006
Created by: Ken
Thank you for taking the time to answer my post. I did try Modbus.org and got a little better understanding but, for a newbe it was a little overwhelming in certain areas.
MacS, that looks like something I can try and work with. That is to say go line by line and try to understand it.
Once again thank you everyone for the input and if anyone can add to this post that would be great.
Regards,
Ken
Created Date: September 28,2006
Created by: Ken
MacS,
Would it be to much to ask if you could post the object form.
Ken
Created Date: September 28,2006
Created by: MacS
Ken,
I don't know what you mean by 'object form '. Do you mean main.frm?
Created Date: September 28,2006
Created by: Ken
Yes the main form (Form1.vb )
Created Date: September 28,2006
Created by: MacS
The VB source code is attached.
There are many companies that have Modbus controls for use in VB that are much easier to use then the attached example. I have used the one from WinTECH ( www.win-tech.com ) in other projects and found it easy to use.
Created Date: December 09,2013
Created by: HadiScada
Modbus TCP Sample VB
Please see here for Modbus TCP sample VB project:
http://hadiscada.blogspot.com/2013/07/modbus-sample-vb-engllish-version.html
Created Date: September 19,2006
Created by: Ken
Hi everyone,
Does anybody have any VB code they could post that shows how to send and receive data using Modbus protocol. Thank you in advance for any and all help.
Bet regards,
Ken