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iTEMP TMT182B
Endress+Hauser
• Operator
The plant operator can only change settings that do not affect the application - and
particularly the measuring path - and simple, application-specific functions that are used
during operation. The operator is able to read all the parameters, however.
• Maintenance
The Maintenance user role refers to configuration situations: commissioning and
process adaptations as well as troubleshooting. It allows the user to configure and
modify all available parameters. In contrast to the Operator user role, in the
Maintenance role the user has read and write access to all the parameters.
• Changing the user role
A user role - and therefore existing read and write authorization - is changed by
selecting the desired user role (already pre-selected depending on the operating tool)
and entering the correct password when subsequently prompted. When a user logs out,
system access always returns to the lowest level in the hierarchy. A user is logged out
either by actively selecting the logout function when operating the device or is logged
out automatically if the device is not operated for a period of over 600 seconds.
Irrespective of this, actions that are already in progress (e.g. active upload/download,
data logging, etc.) continue to be executed in the background.
• As-delivered state
The Operator user role is not enabled when the device is delivered from the factory, i.e.
the Maintenance role is the lowest level in the hierarchy ex-works. This state makes it
possible to commission the device and make other process adaptations without having to
enter a password. Afterwards, a password can be assigned for the Maintenance user
role to protect this configuration. The Operator user role is not visible when the device is
delivered from the factory.
• Password
The Maintenance user role can assign a password in order to restrict access to device
functions. This activates the Operator user role, which is now the lowest hierarchy level
where the user is not asked to enter a password. The password can only be changed or
disabled in the Maintenance user role. A password can be defined at different points in
the operation of the device:
In the menu: Guidance → Commissioning wizard: as part of guided device operation
In the menu: System → User management
Operation options
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