Endress+Hauser SpectraSensors J22 TDLAS, Руководство по эксплуатации

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J22 TDLAS Gas Analyzer Operating Instructions
Hauser 9
2.4 Device-specific IT security
The device offers a range of specific functions to support protective measures on the operator's side. These functions
can be configured by the user and guarantee greater operational safety if used correctly. An overview of the most
important functions is provided in the following section.
Function/interface Factory setting Recommendation
Write protection from hardware
write protection switch
Not enabled On an individual basis following risk assessment.
Access code
(also applies for web server login) Not enabled (0000) Assign a customized access code during commissioning.
WLAN
(order option in display module) Enabled On an individual basis following risk assessment.
WLAN security mode Enabled (WPA2- PSK) Do not change.
WLAN passphrase (password) Serial number Assign an individual WLAN passphrase during commissioning.
WLAN mode Access Point On an individual basis following risk assessment.
Web server Enabled On an individual basis following risk assessment.
CDI-RJ45 service interface — On an individual basis following risk assessment.
2.4.1 Protecting access through hardware write protection
Write access to the device parameters from the local display and the web browser can be disabled with a write
protection switch (DIP switch on the motherboard). When hardware write protection is enabled, only read access to
the parameters is possible.
Hardware write protection is disabled when the device is delivered. See
Write protection with write protection switch
→  .
2.4.2 Protecting access with a password
Different passwords are available to protect write access to the device parameters or access to the device through the
WLAN interface:
•
User-specific access code. Protect write access to the device parameters from the local display or web browser.
Access authorization is clearly regulated through the use of a user-specific access code.
• WLAN passphrase. The network key protects a connection between an operating unit (e.g., notebook or tablet)
and the device through the WLAN interface that can be ordered as an option.
• Infrastructure mode. When the device is operated in infrastructure mode, the WLAN passphrase corresponds to
the WLAN passphrase configured on the operator side.
2.4.3 User-specific access code
Write access to the device parameters through the local display and web browser can be protected by the modifiable,
user- specific access code →  . When the device is delivered, the device does not have an access code and is
equivalent to
0000
(open).
2.4.4 Access from web server
The device can be operated and configured from a web browser with the integrated web server →  . The connection
is through the service interface (CDI-RJ45), the connection for TCP/IP signal transmission (RJ45 connector), or the
WLAN interface.
The web server is enabled when the device is delivered. The web server can be disabled if necessary (e.g., after
commissioning) from the web server functionality parameter.
The J22 TDLAS Gas Analyzer and status information can be hidden on the login page. This prevents unauthorized
access to the information.