Hello,
you must evaluate the outputs of MB_CLIENT in your program.

How do you evaluate the status of system blocks in STEP 7 (TIA Portal)?

Regards,
Kaulquappe

Hello,
each triggered job at MB_CLIENT is finished either with DONE=TRUE or ERROR=TRUE. You must check in your program which output is set. You can't watch that online.

Regards,
Kaulquappe

The first thing you should do: use the online help of TIA or check the manual what 80C8 means.

You can also use the search function in the forum, there are several thread regarding 80C8.

Regards,
Kaulquappe

Hello,

giovani_gaspar

Did you solve the problem? I have the same problem now

really not sure what same problem you have but I recommend for first to check connection established to Server. BUSY signal can indicate also some more things like not initiated next request for data so check your code and output signals of block. Simply I expect generally that you have correct connection to Server, in case of some errors you'll have ERROR and STATUS indications depended to problem.

Hello,

this can be typical problem of not use correct type of register's address and address number, it is clear that some SWs use not offset with register addressing compared to S& PLCs like S7-1x00 (depended to versions) where offset is required with specific MODE value. Pay attention to S7 documentation how to set correct type of type of register and address value depended to it, also correct data storage defined.