TCW210-TH-R1.16- November 2022
Page 17
7.3.4.1.
Logger
The logger works in three modes
–
Time, Alarm and Time&Alarm. The mode specifies what
initiates a record in the logger’s memory.
In Time mode, records are made periodically on “Log interval” time. In Alarm mode, records are
made on every alarm condition. In Time&Alarm mode, a mix of both conditions for records is
used.
The log interval determines the time between two log entries. It is good to remember that by
reducing the log interval, we increase the resolution, but we also reduce the past period for which
we have records.
The logger records can be synchronized with a specific minute in an hour. Synchronization is very
useful when monitoring electricity, water, gas meters, etc. The log interval can be chosen from a
drop-down menu between 1 and 60 minutes. The field
„
Sync to the minute
“
determines which
minute of every hour is used for synchronization. Although any minute can be selected, it is better
to use the default value - 00.
Example:
The current settings are:
•
Current time = 09:12
•
Logger record sync = Enable;
•
Sync to the minute = 00;
•
Sync interval = 15 minutes.
The settings determine 4 records per hour in
HH:00
, HH:15, HH:30, and HH:45.
The device is powered up.
The first record will be immediately after power-up - 09:12. The next records will be in 09:15,
09:30, 09:45, 10:00, 10:15, etc.
There are two ways to reach the logger records:
•
download of the full log file
, using “Download full log”
in the WEB interface
;
•
periodical upload the last unsent records to the dedicated HTTP server.
The records are uploaded in CSV file format using HTTP or HTTPS protocol. The HTTPS upload is
over
TLS 1.0, TLS 1.1 and TLS 1.2 with RSA as a key exchange/agreement and authentication.
The period of the upload can be chosen from the menu between 1 and 24 hours. If you enable
this service, take care of the real-time clock (NTP service).
The HTTP server for upload can be domain or IP address but take care about DNS settings.
Summary of Contents for TCW210-TH
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