Networker 9.1 and TWS integration

We want to integrate this functionality in the new NetWorker 9.1 Implementation. The requirement of the script is to configure all the backups in NetWorker, but provide commands to HP-DPA to schedule and trigger it using their own schedule. The command should provide the exit code/return code to the HP-DPA to determine the success or failure of the backups. I am unable to figure out the commands to pass on to the HP-DPA to achieve what we want.

Did any one of you have encountered this challenge or ever worked on similar requirement? Any inputs are highly appreciated.