Hello
The structure of a planned orders is very simple and it cannot be compared with the structure of a production order.
For a planned order, only capacity requirements will be generated, that means, there is no table to store operation information such as AFVC and AFVV.
If you want to read the standard values, you will need to get the work center from table KBED and then read the standard values directly from the work centers.
BR
Caetano