ADE 9078 DC voltage monitoring on INP, INN

Hi,

While I will be using ADE9078 for 3 phase system power measurement, I would like to monitor a specific DC power supply on (INP, INN) inputs, with a shunt implementation to meet the ±0.5V limits.

- Is it possible to connect directly INN to GND ? (e.g. bypass the 1k/22n filter)

- What registers have to be set ?

Thanks for help,

Frederic