Hart Lock; Configuration Button Lock; Loi Password - Emerson Rosemount 2090P Reference Manual

Electrical Installations
November 2017
4.4.2

HART lock

The HART Lock prevents changes to the transmitter configuration from all sources; all
changes requested via HART, LOI, and local configuration buttons will be rejected. The
HART Lock can only be set via HART communication, and is only available in HART Revision
7 mode. The HART Lock can be enabled or disabled with a Field Communicator or AMS
Device Manager.
Configuring HART lock using Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
Configuring HART lock using AMS Device Manager
1. Right select the device and select Configure.
2. Under Manual Setup select the Security tab.
3. Select Lock/Unlock button under HART Lock (Software) and follow the screen prompts.
4.4.3

Configuration button lock

The configuration button lock disables all local button functionality. Changes to the
transmitter configuration from the LOI and local buttons will be rejected. Local external
keys can be locked via HART communication only.
Configuring configuration button lock using a Field
Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
Configuring configuration button lock using AMS Device Manager
1. Right select the device and select Configure.
2. Under Manual Setup select the Security tab.
3. Within the Configuration Buttons dropdown menu select Disabled to lock external local
keys.
4. Select Send.
5. Confirm service reason and click Yes.
4.4.4

LOI password

A Local Operator Interface Password can be entered and enabled to prevent review and
modification of device configuration via the LOI. This does not prevent configuration from
HART or external keys (analog zero and span; Digital zero trim). The LOI password is a four
digit code that is to be set by the user. If the password is lost or forgotten the master
password is "9307".
The LOI password can be configured and enabled/disabled by HART communication via a
Field Communicator, AMS Device Manager, or the LOI.
44
2, 2, 6, 4
2, 2, 6, 3
Reference Manual
00809-0100-4108, Rev CB
Electrical Installations