Hi to all of you,

I am wondering is there a possibility to use s7 1200 cpu as master controller, and the to use interface module (IM) to open a new rack in electric cabinet? My idea is to use s7 1200 controller and signal cards as distributed I/O, the same as it is possibile with et200sp. I just don't want to use s7 1500 as a controller, instead I want to make the same configuration with sy 1200.

So, is it possibile?

Hello,

yes this is possible.

You can use PROFINET and the PROFINET IM of the ET200 S/M/SP/MP Family.

Regards

Christoph

Should I use the same IM module as I am using when I work with et200sp when I make extension to a new rack?

In that case what is the limit of I/O cards?

Hello,

yes this can be used.

So, I can use the following configuration:

CPU : 6ES7 214-1AG40-0XB0

IM: 6ES7155-6AA00-0BN0

I/O: 6ES7135-6HD00-0BA1 + 6ES7193-6BP00-0DA0

       6ES7131-6BH00-0BA0 + 6ES7193-6BP00-0DA0

       ....

Thank you sooo much for your help.

What will be my I/O cards limit in that case, how many DI, DO, AI, AO?

Hello geri;

Have a look at the description if the IM 155-6 PN HF (you also have access to the technical data on a separate tab):

IM 155-6 PN HF

You will see that you are allowed up to 64 I/O modules on the rack, without limitations on the type of module. This limitation will become important only on very large networks, and will depend on the CPU caracteristics.

Hope this helps, 

Daniel Chartier 

Thanks guys you helped me a lot!  

Awesome forum!

Hello geri;

Of course you can use the S7-1200 controllers with distributed I/O systems, whether from Siemens (ET 200M, ET 200S, ET 200MP, ET 200SP....) or from other manufacturers, such as Wago, Weidmuller and others.

Easiest is using the integrated Profinet port on the S7-1200 controller for distributed I/O connection. You can also add a Profibus master (CM 1243-5) to the S7-1200 rack so you can setup remote I/O on Profibus-DP just as easily.

For a good presentation on distributed I/O with the S7-1200, have a look at the video and documents from this link

Automation tasks in 10 minutes- S7-1200 distributed I/O

Hope this helps,

Daniel Chartier