Jump to content
Andrew_Spencer_Brennan

Arduino Mega to a Unistream HMI/PLC via MODBUS

Recommended Posts

Good day All 

Im wondering if someone will be able to assist me with the following.

we have a few in house built machinery that runs off Arduino Controllers. We needing to link it up to a Unistream HMI to Display the Data. I know it can be done via Modbus. 

Im just needing some help with the initial Modbus from Arduino to Unistream setup

 

Please Assist where you can 

Share this post


Link to post
Share on other sites

Hi Andrew,

exist many arduino library to use modbus RTU or TCP protocol..both master and slave...then how do the sketch depends on which library you will choose.

each library include examples and someone also a manual...pay attention that Arduino MEGA doesn't has a native RS485 or ethernet port then you will need some extra board (usually cheap).

Share this post


Link to post
Share on other sites

Dear,

Do you have news about this development?

I also have the need to be able to communicate arduino with PLC Unistream. Tried some modbus TCP / IP libraries, but had no success.

Thanks in advance for your answers.

 

 

Share this post


Link to post
Share on other sites

Setting up the first communication between two devices can sometimes be tricky.

Upload your UniStream program so we can see how your Modbus is configured in it.

Joe T.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...