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Reference Manual
00809-0200-4101, Rev AA
July 2008
Rosemount 2051
4-2
STATUS Along with the measured or calculated PV value, every FOUNDATION Fieldbus
block passes an additional parameter called STATUS. The PV and STATUS
are passed from the Transducer Block to the Analog Input Block. The
STATUS can be one of the following: GOOD, BAD, or UNCERTAIN. When
there are no problems detected by the self-diagnostics of the block, the
STATUS will be GOOD. If a problem occurs with the hardware in the device,
or, the quality of the process variable is compromised for some reason, the
STATUS will become either BAD or UNCERTAIN depending upon the nature
of the problem. It is important that the Control Strategy that makes use of the
Analog Input Block is configured to monitor the STATUS and take action
where appropriate when the STATUS is no longer GOOD.
Master Reset Method Resource Block
To perform a master reset, run the Master Reset Method. If your system does
not support methods, manually configure the Resource Block parameters
listed below.
1. Set the RESTART to one of the options below:
• Run - Default State
• Resource - Not Used
• Defaults - Sets all device parameters to F
OUNDATION fieldbus default
values
• Processor - Does a software reset of the CPU
Simulation Simulate replaces the channel value coming from the Sensor Transducer
Block. For testing purposes, it is possible to manually drive the output of the
Analog Input Block to a desired value. There are two ways to do this.
Manual Mode
To change only the OUT_VALUE and not the OUT_STATUS of the AI Block,
place the TARGET MODE of the block to MANUAL. Then, change the
OUT_VALUE to the desired value.
Simulate
1. If the SIMULATE switch is in the OFF position, move it to the ON
position. If the SIMULATE jumper is already in the ON position, you must
move it to off and place it back in the ON position.
Electrical shock can result in death or serious injury.
• Avoid contact with the leads and terminals. High voltage that may be present on
leads can cause electrical shock.
Performing a 'Restart with defaults' will set all function block information in the device to
factory defaults. This includes the clearing of all function block links and schedule, as well
as defaulting all Resource and Transducer Block user data.