Hello, I am new on PCS7. So i am trying to download main program(there is new changes) to the OS5-PC. But i can't. I am right clicking OS1_Ref(5) and selecting download. Data copying and 10 minutes later i am getting this "Database context does not exist or is invalid" error (you can see at picture). How can i solve this problem.

Other think i am not right clicking to "Compile and download" to OS5_PC. Because i am worry for PLC goes to Stop. So there is production in our plant

Hi musti463, 

The first things i spotted is the station name...i would prefer not to put “-” as computer name. Pcs7 is very sensitive to computer name. Take note of this. 

Can you check your target path in your os? Right click on the os under pc station. 

Then can you check the access right? Are you able to access to the target station folder? 

Did you set computer name of your project in host file? C->window->system32->drivers->etc->hosts. 

Hope it helps. 

Thank you JazTai. You are very helpful guy. I will try your advices. So i will change my computer name but many settings setupped for old PC name "OS5-PC" at this direction"My Computer > Right Click> Manage > Local Users and Groups > Groups". You can see attached picture too. How can i change this? Should i do this?

So can you share with me PCS7 manuals and training documents links?

Hi, musti 463.

Useful links 4u:

FAQ, Entry ID: 59216666

Simatic manuals guide

Hi musti463,

You may refer to this link as well.

https://support.industry.siemens.com/cs/ww/en/view/88780011

Hope it helps.