HT20IoT-09
User’s
Manual
33
The current software version can also be checked by reading the greeting messages of
the monitor displayed after powering up.
Caution:
Software upgrade is only possible when the monitor is directly
connected to PC (no other
Master
devices connected to RS-485).
Caution:
Turning off the power during the software upgrade may result in
permanent damage to the monitor!
5.8. Measured values archiving
5.8.1. The monitor memory structure
HT20IoT monitors are normally equipped with 4MB of internal memory for storing
the the current data recorded by the monitor. The monitor can record any parameter of the
4 measured values - temperature, relative humidity, dew point and absolute humidity.
Additionally, the user can archive each of 12 defined displayed quantities. Internal
memory of the monitor allows for storage of 534336 records. If you save by default 50% of
the internal memory (or other value defined by the user), the archive is automatically
rewritten to the file system's memory. The memory is a circular buffer. After the memory is
full, the oldest data is overwritten. The internal archive can be read, copied and deleted.
HT20IoT monitors have file system internal memory of the size of 8GB (memory
size of the file system can be increased on request or according to the needs of the
manufacturer) to which the data from the internal memory are automatically rewritten in the
form of files. Data can be downloaded via Ethernet using FTP or Web site.
Minimum archiving period is 10 seconds.
5.8.2. Configuration of archiving
Website is used to configure the archiving parameters. Archiving can be continuous
and conditional. Triggering conditional archiving can be carried out in one of four
possibilities presented in
Fig. 23
( n-on, n-off, off, on). Continuous archiving is activated by
selecting h-on archiving type, and it is turned off by selecting the h-off option
.
