Deprecated Api Functionality; Web Interface; Power Budgeting - Campbell CR300 Series Product Manual

Deprecated API functionality

Starting with OS version 11.0, the .csipasswd file must be updated with Device Configuration
Utility. The data logger will no longer accept .csipasswd files sent with web API commands or
from the RTMC Web Publisher.
See the CRBasic Editor help for information about the data logger web server and API
commands: https://help.campbellsci.com/crbasic/cr300/#Info/webserverapicommands1.htm .

20.3 Web interface

For data loggers with an IP connection, the built-in web interface provides access to real-time
and stored data logger data. For more information on the web interface, watch an instructional
video at: http://www.campbellsci.com.au/videos/web-interface
Read/write access to the web interface requires a .csipasswd file. See
155) for more information.
NOTE:
Ethernet over USB (RNDIS) is considered a direct communications connection. Therefore, it is
a trusted connection and Administrator privileges are automatically granted for all
functionality (csipasswd does not apply).

20.4 Power budgeting

In low-power situations, the data logger can operate for several months on non-rechargeable
batteries. Power systems for longer-term remote applications typically consist of a charging
source, a charge controller, and a rechargeable battery. When ac line power is available, a VAC-
to-VDC wall adapter, the onboard charging regulator, and a rechargeable battery can be used to
construct an uninterruptible power supply (UPS).
When designing a power supply, consider worst-case power requirements and environmental
extremes. For example, the power requirement of a weather station may be substantially higher
during extreme cold, while at the same time, the extreme cold constricts the power available
from the power supply. System operating time for batteries can be estimated by dividing the
battery capacity (ampere hours) by the average system current drain (amperes).
For more information see:
Power Supplies Application Note
l
Battery Care Blog
l
.
The .csipasswd
20. Installation 157
file (p.