4900002277 J22 TDLAS Gas Analyzer
46 SpectraSensors, Inc.
Function scope of the "Web server functionality" parameter
Enabling the Web server
If the Web server is disabled it can only be re-enabled with the Web server
functionality parameter via the following operating options:
• Via local display
Logging out
Before logging out, perform a data backup via the Data management function
(upload configuration from device) if necessary.
Before logging out, perform a data backup via the Data management function
(upload configuration from device) if necessary.
1. Select the Logout entry in the function row.
The home page with the Login box appears.
2. Close the Web browser.
3. Reset the modified properties of the Internet protocol (TCP/IP) if they are no
longer needed → 42.
Access to the
Operating Menu Via
the Operating Tool
The structure of the operating menu in the operating tools is the same as for
operation via the local display.
Connecting the operating tool
Via Modbus RS485 protocol
This communication interface is available in device versions with a Modbus
RS485 output.
Option Description
Off
• The web server is completely disabled.
• Port 80 is locked.
On
• The complete functionality of the web server is available.
• JavaScript is used.
• The password is transferred in an encrypted state.
• Any change to the password is also transferred in an
encrypted state.
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