HVAC and Pumping Forum
Support Forum for HVAC and pumping machines, Modicon M17x and EcoStruxure Machine Expert HVAC software for chillers, AHU, CRAC units for datacenters or process chillers applications - from design, implementation to troubleshooting and more, by Schneider Electric.
Link copied. Please paste this link to share this article on your social media post.
Posted: ‎2025-02-02 02:42 AM
Hi.
I have to connect the HMI panel to the M241 controller via Modbus RTU but I don't know exactly how to do it, somewhere I only came across this article:
https://www.se.com/es/es/faqs/FAQ000235536/
I always made the connection between the PLC and HMI via Modbus TCP using Symbol Configuration, unfortunately here I have to use Modbus RTU.
Please help me how to make such a connection.
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Posted: ‎2025-02-02 11:49 PM
You can try the next video if you are using EcoStruxure Operator Terminal Expert:
If you are using Vijeo Designer then you can try the excel file attached to import in the software the variables.
(note: this excel has been done in 2014 and it only works for a few variables type, you must assign an address to each variable)
Best regards,
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Posted: ‎2025-02-10 04:30 AM
Hi @pawel_kowalski_ ,
Check the next video related to addressing, in Vijeo Designer you still need to access to the %MW:
Best regards,
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Posted: ‎2025-02-02 11:49 PM
You can try the next video if you are using EcoStruxure Operator Terminal Expert:
If you are using Vijeo Designer then you can try the excel file attached to import in the software the variables.
(note: this excel has been done in 2014 and it only works for a few variables type, you must assign an address to each variable)
Best regards,
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Posted: ‎2025-02-09 04:15 AM
Hi.
@LeTomas thank you for the tip. I almost achieved what I wanted, currently I have a problem reading bits.
I have made a program to map variables to Modbus registers and I can read word registers which in my case have the range %MW2000-%MW2061. However, I cannot read registers with bit values ​​which in my case have the range %MX3001.0 - %MX3009.1.
I have no errors during the build.
I am sending a list of registers in the attachment.
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Posted: ‎2025-02-10 04:30 AM
Hi @pawel_kowalski_ ,
Check the next video related to addressing, in Vijeo Designer you still need to access to the %MW:
Best regards,
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.
With achievable small steps, users progress and continually feel satisfaction in task accomplishment.
Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.
of