Hi everyone,

In my project, I am using S7-1511 with TIA version of v15 UPD3. We have 13 Modbus RTU slave Load Cells on the field, so we decided to use Moxa MGate MB3180. For this project precision is so important. My question is; Can i use 13 MB_Client Function Block at the same time. Query of all devices one by one is safe solution but precision and speed is very important in this project.

What is the limitation for S7-1511? Also what is your advices?

Hi Desertfoxx.

I made library for modbus rtu and tcp, that is very useful in case of several devices on the same rtu-bus.

Please take a look at: https://github.com/rexhip/rexhip

What devices do you want to communicate with? The library may have a ready profile:

https://github.com/rexhip/rexhip/tree/master/station%20blocks

If you struggle I can help you set it up.

Kind regards,

Hi Ola,

I will test it and i will send my feedback to you

Thank you so much