Teledyne 465M Modbus Register Maps, Real-Time Concentration and Status Registers Read Only

8.6.MODBUS Register Maps

8.6.1.Notes on MODBUS registers

Concentration values in the MODBUS registers are always expressed in units of PPB (parts-per-billion,) regardless of the concentration units setting of the monitor.

8.6.2.Real-Time Concentration and Status Registers (Read Only)

Decimal			Star	#
Address	Description	Register Type	t Bit	Bits
1	Stream Concentration (g/Nm3)	Float Inverse	0	32
3	Hi Alarm Status	Byte	0	8
3	Hi Hi Alarm Status	Byte	8	8
19	Sensor Reference Value	Float Inverse	0	32
21	Sensor Measure Value (mV)	Float Inverse	0	32
23	Sensor Pressure Value (mV)	Float Inverse	0	32
25	Sensor Gas Temperature (K)	Float Inverse	0	32
27	Sensor UV Lamp Temperature (oC)	Float Inverse	0	32

8.6.3.Instrument Setup and Configuration Registers (Read / Write)

Decimal		Register	Star	#
Address	Description	Type	t Bit	Bits
1030	Hi Alarm Value (PPM)	Float Inverse	0	32
1032	Hi Hi Alarm Value (PPM)	Float Inverse	0	32
1034	Hi Alarm Enable (PPM)	Byte	0	8
1034	Hi Hi Alarm Enable (PPM)	Byte	8	8
1035	Alarm Latch Mode	Byte	0	8
1038	Analog Range (PPM)	Float Inverse	0	32

P/N 06160D DCN6409 Teledyne API Model 465M O3 Monitor Instruction Manual - Page 50