Hi!

I want to read on controller s7-1500 from 12 other controllerss7-1200. How do it? What use of the protocol and command? There is an example of such a realization?

Thank you!

Hello,

maybe first info can be amount of data needed from S7-1200, also each 1200 need some data from 1500?

Update: simply you can use TCP open communication with T instructions, prepared on each PLC, S7-1500 as Client and S7-1200s as Server. Then you can connect to each Server and have data as prepare.

Hi,

As Duris_I mentions, to properly answer, it is necessary to know exactly what information you want to exchange, but there is an example here you can look at:

Data Synchronization with S7 Communication between several S7-1200 Substations and one S7-1500/300 Head PLC

I found this example, it is suitable for such a task?

https://support.industry.siemens.com/cs/document/39040038/data-synchronization-over-open-communication-between-multiple-field-devices-%28s7-1200%29-and-a-head-plc-%28s7-1200-s7-300-winac%29-%28set-17%29-?dti=0&lc=en-DK

Hello,

you have best answer with Michael's post. Look to link and download documentation and project Example. Pls check your link, for me not work...

Hi,

here are some possibilities...

With which devices can the S7-1200 communicate via the integrated PROFINET interface and which protocols does the S7-1200 support?

 Regards,

Towome