Vaisala Optimus OPT100 - Status Registers; Table 30 Status Registers (Read-Only)

Register number Address Register
description
Data format Bit order
17 0010
hex
Gas level alarms
for 7 day average
ROC values
16-bit field 0 = Methane
1 = Acetylene
2 = Ethylene
3 = Ethane
4 = Carbon
monoxide
5 = Carbon
dioxide
6 = TDCG
7 = Hydrogen
15 = Any alarm
active
18 0011
hex
Gas level alarms
for 30 day
average ROC
values
16-bit field 0 = Methane
1 = Acetylene
2 = Ethylene
3 = Ethane
4 = Carbon
monoxide
5 = Carbon
dioxide
6 = TDCG
7 = Hydrogen
15 = Any alarm
active
A.4.3 Status registers
Only the first bit of each status bit field is used.
Table 30 Status registers (read-only)
Register
number
Address Register description Data
format
Notes
1 0000
hex
Device stopped 16-bit field 0 = Device measuring normally
1 = Device stopped (either
automatically or by
administrator), being initialized,
or being uninstalled
Appendix A – Modbus reference
115