SMAR TT400WH, Manual

Page: 27 / 46

Operation
2.7
Figure 2.9 – Local Adjustment Configuration Tree
The DISP option changes the configuration of display mode. Four modes are supported:
-OFF: display is always turned off.
-ON: display is always turned on.
-USER: display normally off but activated when user inserts the magnetic tool in ( S ).
-BRST: display normally off but activated when the equipment sends a Burst command.
The ADDR and JOIN options are read-only and are used to identify the configuration address by the
maintenance port and the equipment status on the
Wireless HART
TM
network, respectively.
Writing Protection
The write protection function can be activated by two means: hardware (key on the main board) and
software. The writing of any parameter will only be possible if both protections are disabled.
Another way to protect the writing, but in a partial way, is the option to Lock Device, for
Wireless HART
TM
.
This option is used in
Wireless HART
TM
equipment to block writing by only one configuration means,
Maintenance Port or Gateway. In this way, the user avoids conflicting configurations when acting
through one of the configurators, in dangerous situations.
The types of lock are:
-Unlocked: both configurators have writing permission.
-Temporarily Locked: only the configurator that locked the device has writing permission. However, after
the equipment is restarted, the status reverts to Unlocked.
-Permanently Locked: only the configurator that locked the device has writing permission and this state
remains even after the device is restarted.
-All locked: no configurator has writing permission until the device is unlocked by the same configurator
that locked it.
ATTENTION
The use of this function should only be used on special occasions, where the guarantee of writing the
parameter is critical and fast. Afterwards, the configurator must return the equipment to unlocked
mode.