Vaisala Optimus OPT100 - Page 109

Register number Address Register
description
Data format Unit and notes
129 0080
hex
Carbon monoxide 32-bit float ppm
v
/m
0081
hex
131 0082
hex
Carbon dioxide 32-bit float ppm
v
/m
0083
hex
133 0084
hex
Total dissolved
combustible
gases (TDCG)
32-bit float ppm
v
/m
0085
hex
135 0086
hex
Hydrogen 32-bit float ppm
v
/m
0087
hex
Gas ratios (24 hour average values)
141 008C
hex
CH
4
/H
2
32-bit float -
008D
hex
143 008E
hex
C
2
H
2
/C
2
H
4
32-bit float -
008F
hex
145 0090
hex
C
2
H
2
/CH
4
32-bit float -
0091
hex
147 0092
hex
C
2
H
6
/C
2
H
2
32-bit float -
0093
hex
149 0094
hex
C
2
H
4
/C
2
H
6
32-bit float -
0095
hex
151 0096
hex
CO
2
/CO 32-bit float -
0097
hex
Other
161 00A0
hex
Time stamp of
measurement
result set, in
seconds since
start of Unix
epoch
64-bit float
(double)
s
00A1
hex
00A2
hex
00A3
hex
165 00A4
hex
Index of
measurement
result set
32-bit integer -
00A5
hex
Appendix A – Modbus reference
109