Appendix A-7: Modbus Register Map - Teledyne T100 Instruction Manual

Teledyne ML - T100 UV Fluorescence SO2 Analyzer

APPENDIX A-7: MODBUS Register Map

MODBUS
Register Address
(dec., 0-based)
(32-bit IEEE 754 format; read in high-word, low-word order; read-only)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
1
52
2
54
1
56
10
100
10
102
10
104
10
106
10
108
Description
MODBUS Floating Point Input Registers
PMT detector reading
UV lamp intensity reading
UV lamp ratio of calibrated intensity
PMT electrical offset
UV lamp electrical offset
SO slope for range #1
2
SO slope for range #2
2
SO offset for range #1
2
SO offset for range #2
2
SO concentration for range #1 during zero/span
2
calibration, just before computing new slope and offset
SO concentration for range #2 during zero/span
2
calibration, just before computing new slope and offset
SO concentration for range #1
2
SO concentration for range #2
2
Concentration stability
Stray light reading
Reaction cell temperature
PMT temperature
Sample pressure
Internal box temperature
High voltage power supply output
Diagnostic test input (TEST_INPUT_8)
Diagnostic temperature input (TEMP_INPUT_5)
Diagnostic temperature input (TEMP_INPUT_6)
Ground reference (REF_GND)
4096 mV reference (REF_4096_MV)
Sample flow
IZS temperature
Vacuum pressure
Pre-amplified UV lamp intensity reading
O concentration
2
O concentration during zero/span calibration, just before
2
computing new slope and offset
O slope
2
O offset
2
O sensor cell temperature
2
APPENDIX A - Version Specific Software Documentation
Units
mV
mV
%
mV
mV
—
—
mV
mV
PPB,
2
PPM
PPB
PPB
PPB
PPB
PPB
C
C
"Hg
C
Volts
mV
C
C
mV
mV
cc/m
C
"Hg
mV
%
%
—
%
C
A-37