Automatic start and Stop the SAP System

Hi experts,

We want to deploy the unattended/Scheduled Start SAP  and stop SAP in IBM i series. How to do it? I have tried with WRKJOBSCDE and putted the command STOPSAP or STARTSAP but after finishing the job, now result. But when I simply put command STOPSAP/STARTSAP it works(start and stop sap system).

How to deploy it?

Thanks

Asad