Endress+Hauser Proline Promass Q 500, Operating Instructions Manual

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Basic safety instructions Proline Promass Q 500 PROFIBUS PA
12 Hauser
2.6 IT security
We only provide a warranty if the device is installed and used as described in the
Operating Instructions. The device is equipped with security mechanisms to protect it
against any inadvertent changes to the device settings.
IT security measures in line with operators' security standards and designed to provide
additional protection for the device and device data transfer must be implemented by the
operators themselves.
2.7 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 in-
operation safety if used correctly. An overview of the most important functions is provided
in the following section.
2.7.1 Protecting access via hardware write protection
Write access to the device parameters via the local display, Web browser or operating tool
(e.g. FieldCare, DeviceCare) can be disabled via 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 →  146.
2.7.2 Protecting access via a password
Different passwords are available to protect write access to the device parameters or access
to the device via the WLAN interface.
• User-specific access code
Protect write access to the device parameters via the local display, Web browser or
operating tool (e.g. FieldCare, DeviceCare). Is equivalent to hardware write protection in
terms of functionality.
• WLAN passphrase
The network key protects a connection between an operating unit (e.g. notebook or
tablet) and the device via the WLAN interface which can be ordered as an option.
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
(→  145).
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 (→  82) 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
(→  138).