Teledyne T100 Instruction Manual page 355

APPENDIX A - Version Specific Software Documentation
MODBUS
Register Address
(dec., 0-based)
12
110
12
112
11
200
11
202
11
204
11
206
(32-bit IEEE 754 format; read/write in high-word, low-word order; read/write)
0
2
10
100
11
200
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
21
2
22
2
23
3
24
A-38
Description
SO concentration for range #1, with O
2
SO concentration for range #2, with O
2
CO concentration
2
CO concentration during zero/span calibration, just before
2
computing new slope and offset
CO slope
2
CO offset
2
MODBUS Floating Point Holding Registers
Maps to SO2_SPAN1 variable; target conc. for range #1
Maps to SO2_SPAN2 variable; target conc. for range #2
Maps to O2_TARG_SPAN_CONC variable
Maps to CO2_TARG_SPAN_CONC variable
MODBUS Discrete Input Registers
(single-bit; read-only)
PMT detector warning
UV detector warning
Dark calibration warning
Box temperature warning
PMT temperature warning
Reaction cell temperature warning
Sample pressure warning
HVPS warning
System reset warning
Rear board communication warning
Relay board communication warning
Front panel communication warning
Analog calibration warning
Dynamic zero warning
Dynamic span warning
Invalid concentration
In zero calibration mode
In span calibration mode
In multi-point calibration mode
System is OK (same meaning as SYSTEM_OK I/O signal)
Sample flow warning
IZS temperature warning
In low span calibration mode
Vacuum pressure warning
SO concentration alarm limit #1 exceeded
2
05036 Rev D
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
correction
2
correction
2
Units
PPB
PPB
%
%
—
%
Conc. units
Conc. units
%
%