Fetch the data from BI to Solution Manager

I want to fetch the data of BI into Solution manager based on Process chain id. I established RFC between ECC 6.0 and Solution Manager.

i created RFC function module in ECC 6.0 and i want to fetch VBAK data.I wrote the program in Solution manager to fetch data from RFC Function module. Problem is how can we get data based on Process chain id. The process chain id is in Solution manager .Guys i want your help.

What code should i write to get my requirement.