ECM NH3CAN, Instruction Manual, Page: 26 / 35

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Command Value Description Reply
SensorOn 0x07 Turn on sensor power None
SensorOff 0x08 Turn off sensor power None
OWDisable 0x0A Ignore 1wire memory (OWDisabled) and use
EE memory values, unit subsequently
performs defForceOW/EERead None
OWEnable 0x0B Use 1wire memory values (OWEnabled),
unit subsequently performs
defForceOW/EERead None
ForceOW/EERead 0x0C Force the module to read the 1wire
memory (OWEnabled)
OR
read the EEprom
(OWDisabled)
defOWReadSuccessfully 0x00
defEEReadSuccessfully 0x01
defOWInvalidSenType 0xFD
defOWZeroSpanDataCRCFail 0xFE
defOWReadError 0xFF
ZeroNH3 0x0F Set zero for NH3, requires write to OD
0x5000 (old value) and 0x5001 (desired
value)
defZeroSpanSuccessful 0x00
defSenModNotReady 0xFD
defZeroSpanDataInvalid 0xFE
defOWZeroSpanWrFail 0xFF
SpanNH3 0x10 Set span for NH3, requires write to OD
0x5000 (old value) and 0x5001 (desired
value)
defZeroSpanSuccessful 0x00
defSpanInvalidNegativeSlope 0xFB
defSpanTooCloseToOffset 0xFC
defSenModNotReady 0xFD
defZeroSpanDataInvalid 0xFE
defOWZeroSpanWrFail 0xFF
ResetNH3 0x12 Resets the zero and span for NH3 back to
factory values (M=1, b=0, x=0)
defZeroSpanSuccessful 0x00
defSenModNotReady 0xFD
defZeroSpanDataInvalid 0xFE
defOWZeroSpanWrFail 0xFF
ResetAllFilters 0x15 Resets alpha for recursive average of
NH3 to factory value (alpha=375)
defAlphaOK 0x00
ExpertModeDisable 0x16 This command removes the unit from
expert mode. None
ResetDeltaNH3Table 0x1D Set all delta %O2 values to 0. None