Feature requests are not issues and will be rejected as an issue.
Please read the pinned post before posting in Feature Request Topic. It gives you a better chance to make your request happen.
I don’t know that you have made a case there for changes in the current modbus integration or what is currently available for Logo.
I don’t know if you searched for Logo here at all. I found this but don’t know if it helps you. perhaps search as suggested in the pinned post and you might finf more.