Hi

Is it possible to connect an ET200S decentralized I/O module to several CPUs?

Hello,

yes is possible with PROFINET and the functionality shared device.

With this you can use the I/O Modules in the ET200S from more then one PLC.

But only the complete module from one CPU!

Regards

Christoph

hi Iman,

in following manual you can see how Shared Device works:

Thanks for answers;

Actually I would like to connect an ET200S module to 4 individual S7 1200 1215c CPUs. 1200 series support PROFINET but ET200S only supports PROFIBUS protocol. Should add any special module to ET200S?

Hello,

shared device is only possible with PROFINET.

If you only have a PROFIBUS Interfacemodule ET200S then you can't access the I/O from more then one PLC.
You should change the PROFIBUS Interfacemodule to a PROFINET Interfacemodule.

But check the technical data of the Interfacemodules, many device only support only 2 PLC's.
Regrads
Christoph

I have an IM 131-1 which has 2 DP ports. So I should replace it with an IM 131-3. I hope the I/O modules and PS do not need to be changed.

Thanks.

Hello,

what you have? Can you post the complete and correct MLFB?

Regards

Christoph

Here you are:

ET200S IM 131-1: 6ES7 151-1AA04-0AB0

PS: 6ES7 138-4CA01-0AA0

D/IO: 6ES7 131 4BD01-0AA0

D/IO: 6ES7 132-4BD01-0AA0

Hello,

the I/O Module and the PM and terminals can also used with the PROFINET Intrefaceproblem, there should be no problem.

Regards
Christoph