Register number Address Register
description
Data format Unit and notes
226 00E1
hex
Carbon dioxide 16-bit signed
integer
ppm
v
227 00E2
hex
Total dissolved
combustible
gases (TDCG)
16-bit signed
integer
ppm
v
228 00E3
hex
Hydrogen 16-bit signed
integer
ppm
v
229 00E4
hex
Moisture in oil 16-bit signed
integer
ppm
w
*10
230 00E5
hex
Temperature of
in-oil
measurement
chamber
16-bit signed
integer
°C*10
231 00E6
hex
Relative moisture
in oil
16-bit signed
integer
%RS*10
232 00E7
hex
Total gas pressure
(TGP)
16-bit signed
integer
hPa
A.4.2 Alert registers
Gas level alert registers are 16-bit fields. Each register communicates the status of alerts of
specific severity for a particular timeframe (for example, gas level caution alerts for present
values).
If an alert is active, the corresponding bit is set to 1. The bit is set to 0 when the alert is
deactivated, turned o, or gas level alerts are muted. For more information, see Gas level
alerts (page 24).
Appendix A – Modbus reference
111
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