This object contains 8 bits of information about the current fault conditions of the UPS. The bits are encoded as follows: BIT 7: 1=UPS fault - internal temperature has exceeded nominal limits BIT 6: 1=UPS fault - bypass relay (where applicable) malfunction BIT 5: 1=UPS fault - battery charger failure BIT 4: 1=UPS in shut down mode via `S' command BIT 3: 1=UPS in `sleep' mode via `@ddd' command BIT 2: 1=UPS fault - main relay malfunction BIT 1: 1=UPS unable to transfer to on-battery operation due to overload BIT 0: 1=UPS's output unpowered due to low battery shut down Note that bit 0 is the low-order bit.