Foundation; Oundation Fieldbus Overview - Emerson Rosemount 2230 Reference Manual

Reference Manual
00809-0100-2230
4.8 F
OUNDATION
This section provides a brief overview of F
Rosemount 2230 Graphical Field Display.
For detailed information about F
in the Rosemount 2230 Series, refer to
F
OUNDATION
4.8.1 F
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Function blocks within the fieldbus device perform the various functions required for
process control, such as analog input (AI) functions, as well as proportional-integral
derivative (PID) functions and multiple analog output (MAO) functions.
The standard function blocks provide a common structure for defining function block
inputs, outputs, control parameters, events, alarms, and modes, and combining them into
a process that can be implemented within a single device or over the fieldbus network.
This simplifies the identification of characteristics that are common to function blocks.
In addition to function blocks, fieldbus devices contain two other block types to support
the function blocks. These are the resource block and the transducer block.
Resource blocks contain the hardware specific characteristics associated with a device;
they have no input or output parameters. The algorithm within a resource block monitors
and controls the general operation of the physical device hardware. There is only one
resource block defined for a device.
Transducer blocks connect function blocks to local input/output functions. They read
sensor hardware and write to effector (actuator) hardware.
Resource block
The resource block contains diagnostic, hardware, electronics, and mode handling
information. There are no linkable inputs or outputs to the resource block.
Main transducer block (TB1100)
The Main Transducer Block contains parameters for configuration of the Rosemount 2230.
It contains device information including diagnostics and the ability to configure, set to
factory defaults and restart the Rosemount 2230.
Register transducer block (TB1200)
The register transducer block allows a service engineer to access all database registers in
the device.
Multiple analog output block
A Multiple Analog Output (MAO) Block accepts output values from field devices and
assigns them to specified I/O channels in order to make them available for the display.
Rosemount 2230 Graphical Field Display
™
Fieldbus overview
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Fieldbus Block Manual (Document No. 00809-0100-4783).
™
Fieldbus block operation
Configuration and operation
Fieldbus block operation with the
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Fieldbus technology and function blocks used
™
F Fieldbus Block Information
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March 2021
and the
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