Thanks everyone for your responses.
I have come to the conclusion that I should look into some sort of remote relay or sequencer to allow the AR2412 to be powered on and off as required.
In relation to the “Power Down” button on the Home Page, I have found more detail which helps my understanding in the GLD Touch Screen Reference document (v1.4) on page 4:
To safely Power Down the GLD system
Touch the Power Down button, confirm, and then switch power off. Failure to power down correctly may result in parameter changes made up to 30 seconds before power is removed becoming lost.
