Power 2 input voltage Pixhawk 2.1

Hi everyone!

I was wonder if its posible to get the voltage of the Power2 input from the Pixhawk 2.1. Im only getting the HWVoltage, this one show me the voltage of the system, but not from the power 1 or 2.

I need that to realize if one of the power source to Power 1 or 2 is damadge.