Conext system control panel power supply

If I am reading this correctly, it appears that when using the SCP with only a MPPT-80-600 CC, the SCP needs some sort of auxiliary power supply as only inverter/chargers supply power to for the xanbus network. Is this correct? IF so how does one supply the needed 15 volts? I cannot find any sort of schneider accessory for this. I can make some phone calls but I thought I would ask here first. Thanks!
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The -80 is also excellent for adding on later and over paneling by 2 or 3 times the 23A 600V current limit.
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