Emerson Rosemount MultiVariable 3051SMV, Справочное руководство

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Reference Manual
00809-0100-4853, Rev AB
Configuration
January 2017
Configuration
Software write lock
To configure software write lock, select Actions > Methods > Methods > Write Lock Setup and follow the
on-screen prompts for software write lock. The security switch on the electronics board must be in the
unlocked position to use software write lock.
To unlock the transmitter, run the write lock setup method again and follow the on-screen prompts.
Hardware write lock
To configure hardware write lock, select Actions > Methods > Methods > Write Lock Setup and follow the
on-screen prompts for hardware write lock. This method must be run twice if software write lock is
already configured, first to unlock the device, then to switch to hardware write lock.
To lock or unlock the transmitter, set the security switch on the electronics board as shown in Figure 3-8
on page 25 . Note that the hardware security switch is only followed if the transmitter has been
configured to use hardware write lock as described above.
The state of the security switch can be read in the Device Switches State parameter.
2.6 Device capabilities
2.6.1 General block information
Reference information on the process control function blocks can be found in the Function Block
Reference Manual .
2.6.2 Link active scheduler
The Rosemount 3051SMV can be designated to act as the backup Link Active Scheduler (LAS) in the
event that the LAS is disconnected from the segment. As the backup LAS, the Rosemount 3051SMV will
take over the management of communications until the host is restored. The host system may provide a
configuration tool specifically designed to designate a particular device as a backup LAS.