Endress+Hauser Hart Proline Promag P 500, Operating Instructions Manual, Page: 12 / 210

Basic safety instructions Proline Promag P 500 HART
12 Hauser
User-specific access code
Write access to the device parameters via the local display, Web browser or operating tool
(e.g. FieldCare, DeviceCare) can be protected by the modifiable, user-specific access code
(→  132).
When the device is delivered, the device does not have an access code and is equivalent to
0000 (open).
WLAN passphrase
A connection between an operating unit (e.g. notebook or tablet) and the device via the
WLAN interface (→  84) which can be ordered as an option is protected by the
network key. The WLAN authentication of the network key complies with the IEEE 802.11
standard.
When the device is delivered, the network key is pre-defined depending on the device. It
can be changed via the WLAN settings submenu in the WLAN passphrase parameter
(→  126).
General notes on the use of passwords
• The access code and network key supplied with the device should be changed during
commissioning.
• Follow the general rules for generating a secure password when defining and managing
the access code or 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, see the "Write protection via access code" section →  132
2.7.3 Access via fieldbus
When communicating via fieldbus, access to the device parameters can be restricted to
"Read only" access. The option can be changed in the Fieldbus writing access parameter.
This does not affect cyclic measured value transmission to the higher-order system, which
is always guaranteed.
For detailed information, see the "Description of Device Parameters" document
pertaining to the device →  202
2.7.4 Access via Web server
The device can be operated and configured via a Web browser with the integrated Web
server (→  76). The connection is 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 if
necessary (e.g. after commissioning) via the Web server functionality parameter.
The device and status information can be hidden on the login page. This prevents
unauthorized access to the information.
For detailed information, see the "Description of Device Parameters" document
pertaining to the device →  202
2.7.5 Access via CDI-RJ45 service interface
The device can be connected to a network via the CDI-RJ45 service interface. Device-
specific functions guarantee the secure operation of the device in a network.
It is advisable to take relevant security concepts into consideration, such as those issued by
the Federal Office for Information Security. This includes organizational security measures