Table C-2. Read Registers For 42I - Thermo Scientific 42i Instruction Manual

Thermo Fisher Scientific
Note For additional information on how to read registers and interpret the
data, refer to the "(0x03/0x04) Read Holding Registers / Read Input
Registers" section in this appendix.
Table C–2. Read Registers for 42 i
Register Variable
Number
0 NOT USED
1 & 2 NO
3 & 4 NO2
5 & 6 NOx
7 & 8 NOT USED
9 & 10 NOT USED
11 & 12 LOW NO
13 & 14 LOW NO2
15 & 16 LOW NOx
17 & 18 NOT USED
19 & 20 NOT USED
21 & 22 HIGH NO
23 & 24 HIGH NO2
25 & 26 HIGH NOx
27 & 28 NOT USED
29 & 30 NOT USED
31 & 32 RANGE (NOx)
33 & 34 NOT USED
35 & 36 INTERNAL TEMPERATURE
37 & 38 CHAMBER TEMPERATURE
39 & 40 COOLER TEMPERATURE
41 & 42 NO2 CONVERTER TEMP
43 & 44 NOT USED
45 & 46 PERM OVEN GAS
47 & 48 PERM OVEN HEATER
49 & 50 CHAMBER PRESSURE
51 & 52 SAMPLE FLOW
53 & 54 PMT VOLTS
MODBUS Parameters Supported
▲
Perm Span Option
Perm Span Option
Bypass Flow Option
Model 42i Instruction Manual
MODBUS Protocol
C-11