Set The Hart Lock; Enable Or Disable Software Write-Protection - Emerson Micro Motion 5700 Configuration And Use Manual

Introduction to configuration and commissioning
March 2019

3.1.4 Set the HART lock

If you plan to use a HART connection to configure the device, you can lock out all other HART masters. If you
do this, other HART masters will be able to read data from the device but will not be able to write data to the
device.
Restriction
• This feature is available only when you are using the Field Communicator or AMS.
• This feature is available only with a HART 7 host.
Procedure
1. Choose Configure > Manual Setup > Security > Lock/Unlock Device.
2. If you are locking the meter, set Lock Option as desired.
Option Description
Permanent Only the current HART master can make changes to the device. The device will remain
locked until manually unlocked by a HART master. The HART master can also change
Lock Option to Temporary.
Temporary Only the current HART master can make changes to the device. The device will remain
locked until manually unlocked by a HART master, or a power-cycle or device reset is
performed. The HART master can also change Lock Option to Permanent.
Lock All No HART masters are allowed to make changes to the configuration. Before changing
Lock Option to Permanent or Temporary, the device must be unlocked. Any HART
master can be used to unlock the device.
Postrequisites
To avoid future confusion or difficulties, ensure that the device is unlocked after you have completed your
tasks.

3.1.5 Enable or disable software write-protection

Display Use a mechanical switch on the display.
ProLink III Device Tools > Configuration > Write-Protection
Field Communicator Configure > Manual Setup > Security > Lock/Unlock Device
When enabled, Write-Protection prevents changes to the transmitter configuration. You can perform all
other functions, and you can view the transmitter configuration parameters.
Note
The write protection setting via software methods (such as ProLink III) is only available on transmitters
without a display.
For transmitters with a display, write protection is only available using the lock switch on the display.
Write-protecting the transmitter primarily prevents accidental changes to configuration, not intentional
changes. Any user who can make changes to the configuration can disable write protection.
22 Micro Motion Model 5700 Transmitters with Configurable Outputs
Configuration and Use Manual
MMI-20025166