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Reference Manual
00809-0200-4101, Rev AA
July 2008
3-3
Rosemount 2051
Other Types of Modes
Other types of modes are Cas, RCas, ROut, IMan and LO. Some of these
may be supported by different function blocks in the Rosemount 2051. For
more information, see the Function Block manual, document
00809-0100-4783.
NOTE
When an upstream block is set to OOS, this will impact the output status of all
downstream blocks. The figure below depicts the hierarchy of blocks:
Simulation Simulation is the functionality of the AI block. To support testing, either
change the mode of the block to manual and adjust the output value or enable
simulation through the configuration tool and manually enter a value for the
measurement value and its status (this single value will apply to all outputs).
In both cases, first set the ENABLE jumper on the field device.
NOTE
All fieldbus instruments have a simulation jumper. As a safety measure, the
jumper has to be reset every time there is a power interruption. This measure
is to prevent devices that went through simulation in the staging process from
being installed with simulation enabled.
With simulation enabled, the actual measurement value has no impact on the
OUT value or the status. The OUT values will all have the same value as
determined by the simulate value.
RESOURCE BLOCK
FEATURES and
FEATURES_SEL
The FEATURES parameter is read only and defines which features are
supported by the 2051. Below is a list of the FEATURES the 2051 supports.
FEATURES_SEL is used to turn on any of the supported features that are
found in the FEATURES parameter. The default setting of the Rosemount
2051 does not select any of these features. Choose one or more of the
supported features if any.
UNICODE
All configurable string variables in the 2051, except tag names, are octet
strings. Either ASCII or Unicode may be used. If the configuration device is
generating Unicode octet strings, you must set the Unicode option bit.
REPORTS
The 2051 supports alert reports. The Reports option bit must be set in the
features bit string to use this feature. If it is not set, the host must poll for
alerts. If this bit is set, the transmitter will actively report alerts.
Resource
Block
Transducer
Block
Analog Input
(AI Block)
Other
function
blocks