S7 - Hardware Config

Hello!

One question...

This is what happens:

I configure my hardware configurator, save and compile it, and then I download it to the CPU.
After it is downloaded and the CPU is in STOP because I have still not downloaded my program, I go ONLINE. No problem, it is showing the different states in each slot etc.....Everything is okay.

But if I afterwards shut down Simatic, then I open it back up, open up Harware configurator and try to go ONLINE again, I get this dialog:


Differences ONLINE/Offline

Module Cause
CPU 315-2 DP System Data Differ



Your saved version of the configuration differs from the one in the plc.



I have seen this dialog many times before, but in this case it does not make any sence to me. Because I went ONLINE to the plc right before I shutdown Siamtic, but when I open it back up and goes ONLINE, then I get this. I have not done any modifications in between....

Anybody got an answer to enlighten me

Thank you very much

regards Andreas

Hei Andreas.

When you edit the HW configuration, notice the project name, is it the same as the offline project name in Simatic Manager ?

I suspect that somehow the HW config isn't saved to the right project.