Operating Manual CHM 8k
R1.7 / 01-2020
Communication via RS485 & Ethernet
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8.6 Firmware update
The system software of the
CHM 8k can be updated via an Ethernet interface (WAN / LAN connection).
Please refer to the following section 8.7 Communication via Ethernet web interface for details. A software
update requires a superuser password.
8.7 Communication via Ethernet web interface
8.7.1 Device overview and access rights (Device tab)
Figure 15 Web interface.
Figure 15 shows the start screen ("Device" tab) after successful connection with the device (for startup
see 7.2). This screen shows information about the current status of the device and the user can log in as
a superuser or service user is possible.
Communication with the CHM 8k via an Ethernet connection is fast, secure and system-independent. An
Apache web server runs inside the device. This enables a communication and configuration platform via
the web interface for processing firmware updates, quick previews of measurement results or
downloading full-day NetCDF raw data.
In general, the web interface contains the following access rights:
•
End users can check the status of the instrument.
•
Superusers can additionally download NetCDF files, configure the device, download the user
manual as well as other configuration files, update the firmware, and switch off or restart the
device.
•
Service users can set additional system parameters, for example, the serial number of the device
(see Table 4), upload critical configuration files and reset the superuser password.
The status information on the device tab and the content in the process status tab are updated every
minute. The listed status information codes correspond to the status codes in
Table 17 and the status
provided in data telegrams via RS485 interface. The process status (Figure 23) provides additional
information for the Lufft service personnel.
In superuser or service mode, the start page contains buttons to switch the device off or to initiate a reset.
8.7.2 Access to measurement data (NetCDF files, viewer)
Figure 16 shows the directory of NetCDF files that are visible to all users. In superuser or service mode,
these NetCDF files can be downloaded by clicking on the file name.