HT22IoT-09
User’s
Manual
28
7042/6042
7521
Reserved
7044/6044
7522
Progress of internal archive rewriting To the file
system
7046/6046
7523
Current time
-
Current time
7048/6048
7524
Month, day
MMDD
Current date - month, day
7050/6050
7525
Date - year
YYYY
Current date - year
7052/6052
7526
Reserved
7054/6054
7527
the amount of file system memory free space
(kB), value ”-1” means a memory error
7056/6056
7528
Total storage capacity of file system memory
(kB), value ”-1” means no properly installed
memory
7058/6058
...7072/6072
7529-
7536
Reserved
7074/6074
7537
The first defined register displayed
7076/6076
7538
The second defined register displayed
7078/6078
7539
The third defined register displayed
...
….
……….
7096/6096
7548
The twelfth defined register displayed
7098/6098
7549
E
lux
Illuminance
7100/6100
7550
Reserved
7102/6102
7551
TVOC
ppb
Total amount of volatile organic compounds
7104/6104
7552
eCO2
ppm
CO2 concentration
5.6.7 MQTT Protocol
The HT22IoT recorder has a built-in MQTT client, enabling the export of
measurement data to a master system based on the MQTT protocol. Communication
configuration requires setting the correct address of the MQTT server (broker), the port on
which the server is listening, the name of the device under which the HT22IoT recorder is
to be visible in the parent system, and the name (topic) under which the data from the
recorder will be published. It is also possible to specify at what time interval the data
should be published. MQTT configuration is available from the e-Con program level,
available free of charge from the manufacturer's website (