Register 1
All bits are valid on the Matrix UPS. SmartUPS models only support bits
6 and 7. Other models do not respond.
Bit Hex
Bit
Meaning
0 0x01 Inwakeup mode (typically lasts <2s)
1 0x02 Inbypass mode due to internal fault - see register 2 or 3
2 0x04 Goingto bypass mode due to command
3 0x08 Inbypass mode due to command
4 0x10 Returningfrom bypass mode
5 0x20 Inbypass mode due to manual bypass control
6 0x40 Readyto power load on user command
7 0x80 Readyto power load on user command or return of line power
Register 2Matrix UPS models report bits 0-5. SmartUPS models only support bits 4
and 6. SmartUPS v/s and BackUPS Pro report bits 4, 6, 7. Unused bits
are set to 0. Other models do not resp ond.
Bit Meaning
0 Fan failure in electronics, UPS in bypass
1 Fan failure in isolation unit
2 Bypass supply failure
3 Output voltage select failure, UPS in bypass
4 DC imbalance, UPS in bypass
5 Command sent to stop bypass with no battery connected - UPS still in
bypass
6 Relay fault in SmartTrim or SmartBoost
7 Bad output voltage
Register 3All bits are valid on the Matrix UPS and 3rd generation SmartUPS models.
SmartUPS v/s and BackUPS Pro models report bits 0-5. All others report
0-4. State change of bits 1,2,5,6,7 are reported asynchronously with ? and
195