Gas level alert registers are 16-bit fields. Each register communicates the status of alerts of specific severity for a particular timeframe (for example, gas level caution alerts for present values).
If an alert is active, the corresponding bit is set to 1. The bit is set to 0 when the alert is deactivated, turned off, or gas level alerts are muted. For more information, see Gas level alerts.
| Register number | Address | Register description | Data format | Bit order |
|---|---|---|---|---|
| 11 | 0x000A | Gas level caution alerts for present values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 8 = Moisture in oil 9 = Relative moisture in oil 11 = TGP above maximum limit 12 = TGP below minimum limit 15 = Any caution alert active |
| 12 | 0x000B | Gas level caution alerts for 24 hour average ROC values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 15 = Any caution alert active |
| 13 | 0x000C | Gas level caution alerts for 7 day average ROC values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 15 = Any caution alert active |
| 14 | 0x000D | Gas level caution alerts for 30 day average ROC values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 15 = Any caution alert active |
| 15 | 0x000E | Gas level alarms for present values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 8 = Moisture in oil 9 = Relative moisture in oil 11 = TGP above maximum limit 12 = TGP below minimum limit 15 = Any alarm active |
| 16 | 0x000F | Gas level alarms for 24 hour average ROC values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 15 = Any alarm active |
| 17 | 0x0010 | Gas level alarms for 7 day average ROC values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 15 = Any alarm active |
| 18 | 0x0011 | Gas level alarms for 30 day average ROC values | 16-bit field |
0 = Methane 1 = Acetylene 2 = Ethylene 3 = Ethane 4 = Carbon monoxide 5 = Carbon dioxide 6 = TDCG 7 = Hydrogen 15 = Any alarm active |