transactional backup for every 15 min of sybase 15.7.0.30

Hi,

I have ecc 6 sybase database version 15.7.0.30 on windows based.

I need backup procedure of sybase database.

As I tried it from dbacockpit > scheduled plan. I found the option only for hourly basis. Where as I need it every 15 min. (transactional backup only).

I am using following sql script for transactional backup.

dump trans DEV to "G:\backup\dev.txn" with compression = 4

go

Is there any other way to perform transactional backup ?

Regards,

Devendra