Sinamics S110 Automatic start bit

Dear Gents

First a happy new year to all

I am playing around with a S110_CU305_PN controller and is trying to make it as automated as possible.

At startup (after power-down) I would like to have the drive startup and enable operations and set the start bit p840, is there a way to solve this internally that I haven't noticed ?

I am just using the basic operations in the drive, so my first thought was to set an output when the controller reaches ready stage and then loop this true a emergency breaker and into an input that will trigger p840, is this the way to go ?

Thanks in advance