Teledyne T400 User Manual page 173

Teledyne API - Models T400 and 400E (04402G DCN6874)
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
52
54
56
4
130
4
132
4
134
4
136
083730400A DCN8130
MODBUS Floating Point Input Registers
Photometer detector measure reading
Photometer detector reference reading
Photometer lamp stability
Slope for range #1
Slope for range #2
Offset for range #1
Offset for range #2
Concentration for range #1 during zero/span calibration, just before
computing new slope and offset
Concentration for range #2 during zero/span calibration, just before
computing new slope and offset
Concentration for range #1
Concentration for range #2
Concentration stability
Ozone generator reference detector reading
Ozone generator lamp drive
Ozone generator lamp temperature
Ozone scrubber temperature
Ozone scrubber temperature duty cycle
Photometer lamp temperature
Photometer lamp temperature duty cycle
Sample temperature
Sample flow rate
Sample pressure
Internal box temperature
Diagnostic test input (TEST_INPUT_7)
Diagnostic test input (TEST_INPUT_8)
Diagnostic temperature input (TEMP_INPUT_6)
Diagnostic temperature input (TEMP_INPUT_7)
Ground reference
Precision 4.096 mV reference
External analog input 1 value
External analog input 1 slope
External analog input 1 offset
External analog input 2 value
Description Units
mV
mV
%
—
—
PPB
PPB
PPB
PPB
PPB
PPB
PPB
mV
mV
°C
°C
Fraction
(1.0 = 100%)
°C
Fraction
(1.0 = 100%)
°C
cc/m
Inches Hg
°C
mV
mV
°C
°C
mV
mV
Volts
eng unit /V
eng unit
Volts
A-1