Endress+Hauser Levelflex FMP55, Operating Instructions Manual, Page: 58 / 214

Operation options Levelflex FMP55 HART
58 Hauser
8.2.2 User roles and related access authorization
The two user roles Operator and Maintenance have different write access to the
parameters if a device-specific access code has been defined. This protects the device
configuration via the local display from unauthorized access →  58.
Access authorization to parameters
User role Read access Write access
Without access
code
(from the factory)
With access code Without access
code
(from the factory)
With access code
Operator    --
Maintenance    
If an incorrect access code is entered, the user obtains the access rights of the Operator
role.
The user role with which the user is currently logged on is indicated by the Access
status display parameter (for display operation) or Access status tooling parameter
(for tool operation).
8.2.3 Data access - Security
Write protection via access code
Using the device-specific access code, the parameters for the measuring device
configuration are write-protected and their values can no longer be changed via local
operation.
Define access code via local display
1. Navigate to: Setup → Advanced setup → Administration → Define access code
→ Define access code
2. Define a max. 4-digit numeric code as an access code.
3. Repeat the same code in
Confirm access code parameter.
 The -symbol appears in front of all write-protected parameters.
Define access code via operating tool (e.g. FieldCare)
1. Navigate to: Setup → Advanced setup → Administration → Define access code
2. Define a max. 4-digit numeric code as an access code.
 Write protection is active.
Parameters that can always be changed
The write protection does not include certain parameters that do not affect the
measurement. Despite the defined access code, they can always be modified, even if the
other parameters are locked.
The device automatically locks the write-protected parameters again if a key is not pressed
for 10 minutes in the navigation and editing view. The device locks the write-protected
parameters automatically after 60 s if the user skips back to the measured value display
mode from the navigation and editing view.
• If write access is activated via access code, it can be also be deactivated only via the
access code →  59.
• In the "Description of Device Parameters" documents, each write-protected
parameter is identified with the -symbol.