Chapter 5
On-line data logging
capt
2
web supports logging capture data to a file on a mass storage device. This allows to log data over an extended
period of time without a running browser application.
If you have a mass storage device connected to your capt
2
web module’s USB port, you have the possibility to save a
session’s captured data to a file on the storage device.
Mass storage devices must be formatted with FAT12, FAT16 or FAT32, with a maximum capacity of 4GBytes.
Logging to a file is controlled by the USB view in the web interface as shown in figure
5.1
.
Figure 5.1: USB view in the web interface.
To check the current USB mode click on the button "Refresh". There are three different modes:
•
Terminal Mode
Your device is running as a client in terminal mode See chapter
7
for details.
•
Not Connected
There is no end point connected to the USB port.
•
Connected
You have a mass storage device connected. The content of the root directory on the mass storage
device is shown. Each file can be downloaded.
When connected and no logging is running, the capture files can be downloaded by clicking on the link of the files.
The files can be stored to your local file system.
Start a log by clicking on the button "Start Logging". An input box prompts for the file name of the new capture file.
Consider the following:
•
Type a file name in the format ’8.3’. Maximum 8 characters file name and maximum 3 characters for the file
name extension.
Steinbeis Transfer Center Embedded Design and Networking
Baden-Württemberg Cooperative State University Lörrach
Prof. Dr.-Ing. Axel Sikora
