my last fotos were more informal for Richard what type of sensors are still available in my T18SZ.
From what i understood from Richards sensor list is that the PBS-V60 is broadcasting it´s data at slot number 1 and 2. You can not get anything at slot 8.
So just try to select Voltage at Slot number 1. Then 1+2 will be occupied by voltage.
Make sure you PBS-V60 is set to Futaba. (Check with PowerBox Terminal Software).