XNX Universal Transmitter - Merkantile

XNX Universal TransmitterB.2 Modbus RegistersModbus HoldingRegister AddressDatatype Variable Name Description40001 Int16 ID MSB always 0x24 to facilitate automatic identification. LSB repeat of Modbus address.40002 Int16 ID Identical to 4000140003 to 40004 Float32 fCurrentConc The reported gas concentration in current measurement units. For example, methane at 50% LEL would be reported as 50.0 here. Thisconcentration is forced to zero during inhibit mode.40005 int16 iFaultWarnNumber This is the integer representation of the fault status. If any fault exists this will take a value in the range 1000 to 1999. Otherwise, if anywarning exists, this will take a value in the range 1 to 999. Normally, this has the value zero. For example, if the XNX temperature is outof range, this will take the value 1103.40006 int8 iAlmFltLev This register contains 4 meaningful bits regarding the presence of alarms or faults. The bit assignments are as follows: Bit 0: AL1 activeBit 1: AL2 active Bit 4: Warning active Bit 6: Fault Active All others: For future expansionAppendix B - Modbus ® Protocol B-3B.2 Modbus Registers