Hello Mates,

Could anybody describe how to solve the next:

I need to display the states (1 or 0) of I/Os of an S7-1200 on a Simatic Touch KTP400.

Is there any easy solution for it? How can I handle the I/Os as an array or byte addressed or so...

I am totally confused since I can not correctly ask Google for the helpful answer.

Any kind of reply would be appreciated.

THX.

Hi PicLaci

You could do it like this:

bundle your inputs/outputs in bytes in the tag table

              (be careful to only read them, else you might cause massive problems!)

in the example's case, I wrote them to a DB's variables.

             (to be sure they can't be written directly from the HMI - not really neccessary, but a small precaution)

Then hand them over to the HMI in the HMI tag-table.

Insert an "I/O-Area" - Element to your HMI-page, set it to "Output" and assign the variable.

Set the dataformat to binary, set it to show 8 elements and transfer it to your PLC and HMI.

AGAIN:

Take precautions not to write these InBytes or OutBytes by accident, because you might overwrite an In- or Output and cause potentionally dangerous problems with your machine!!

Aside from that, it's a nice addon to be able to see the active INs and OUTs, thanks for the idea!

EDIT:

When I look at my post, I can't see the images, if that's a problem with my PC or if they are not loaded, I can't say...

They show up when using the "Quote" function though

Dear NiM_0021,

Thank you for the detailed answer. It is absolutely what I was looking for. Screenshots are helpful.

THX.