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WEBDL2 Datalogger

A universal data storage system

The WEBDL2 is a universal data logger consisting of hard- and software. The data logger is based on an ARM9 CPU. The system is running an embedded Linux as operating system.

It acquires data from directly connected measuring instruments like a gamma detector and stores these data. WEBDL2 can visualize data directly through a web server in an easy way.

Hardware features

  • ARM CPU
  • 64MB RAM
  • 8MB Data flash (boot loader)
  • SD Card / Mini SD Card
  • 1 Ethernet port 10/100Mbit (PoE)
  • 1 USB connector external
  • 1 USB connector internal
  • 3 native serial ports (RS232)
  • 1 native RS232 port or alternative RS485/422
  • 1-wire interface
  • Real time clock (RTC), powered by an ultra-capacitor
  • 4-row LCD Display incl. 4-button keypad

Software features

  • Running Linux (2.6.x)
  • For specific purpose the WEBDL2 can also provide the collected data through a FTP server
  • Every Browser can act as a client. The web page is optimized for MS Internet Explorer 6 but also tested with Firefox 1.5, Netscape 7.1 and Opera 8.51
  • Support of SSL (https and SSH)
  • Configuration of the station through the web page
  • Emergency and maintenance login over a console is provided at a native serial port
  • Login over Telnet and SSH is supported

Options

  • Using USB, it is possible to connect several devices such as printers, displays and modems
  • The flash memory is easily expandable via a memory stick at the USB port
  • Connections via SAMBA (such as MS Windows shares)
  • Adaptation of the systems to specific customer requirements is possible. LINUX is used as the operating system, which offers many other possibilities