Safety instructions Proline Prosonic Flow W 400 HART
12 Endress+Hauser
General notes on the use of passwords
• The access code and network key supplied with the device should be changed during
commissioning for safety reasons.
• Follow the general rules for generating a secure password when defining and managing
the access code and network key.
• The user is responsible for the management and careful handling of the access code and
network key.
• For information on configuring the access code or on what to do if you lose the
password, for example, see "Write protection via access code" → 116.
2.7.3 Access via web server
The integrated web server can be used to operate and configure the device via a web
browser → 67. The connection is established via the service interface (CDI-RJ45) or
the WLAN interface.
The web server is enabled when the device is delivered. The web server can be disabled via
the Web server functionality parameter if necessary (e.g., after commissioning).
The device and status information can be hidden on the login page. This prevents
unauthorized access to the information.
Detailed information on the device parameters:
"Description of device parameters" document → 172.
2.7.4 Access via service interface (CDI-RJ45)
The device can be connected to a network via the service interface (CDI-RJ45). Device-
specific functions guarantee the secure operation of the device in a network.
The use of relevant industrial standards and guidelines that have been defined by national
and international safety committees, such as IEC/ISA62443 or the IEEE, is recommended.
This includes organizational security measures such as the assignment of access
authorization as well as technical measures such as network segmentation.
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