HID Protocol

For UPS

Table 1: Power Device Physical Units Implemented in HID Units

--------------	Physical Unit	HID Unit	HID Unit Code	HID Unit Exponent	HID Size
AC Voltage	Volt	Volt	x00F0D121	7	8
AC Current	centiAmp	Amp	x00100001	-2	16
Frequency	Hertz	Hertz	xF001	0	8
DC Voltage	centiVolt	Volt	x00FOD121	5	16
Time	second	s	x1001	0	16
DC Current	centiAmp	Amp	x00100001	-2	16
Apparent or Active Power	VA or W	VA or W	xD121	7	16
Temperature	°K	°K	x00010001	0	16
Battery Capacity	AmpSec	AmpSec	x00101001	0	24
None	None	None	x0	0	8

References

• usb.org pdf