Hello

I have S7-300 cpu and a KTP700. I can upload program to CPU, and i can upload screens/text etc to the KTP. But when creating a button to set/reset bits in the CPU, i cannot upload because of this error in the attached screenshot.

Any ideas?

Hello Garrianz,

please be so Kind and don't post twice or more for the same Problem.

Thanks.

You also make an another topic:

https://support.industry.siemens.com/tf/ww/en/posts/error-accessing-com-service/221407/?page=0&pageSize=10

Garrianz

Yes i know, i published in the wrong category. But dont know how to delete the wrong post.

Please note for next time:

There is a button "Delete". This is visible as long as no further post is created in the topic.

As mentioned by ixo65 this question was posted twice. Please use: Error accessing COM service in the SIMATIC S7-300 / S7-300F conference.