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Reference Manual
00809-0100-2230, Rev BB
August 2014
Rosemount 2230
4-22
Section 4. Configuration and Operation
4.8 FOUNDATION
FIELDBUS
OVERVIEW
This section provides a brief overview of FOUNDATION Fieldbus block
operation with the Rosemount 2230 Graphical Field Display.
For detailed information about FOUNDATION Fieldbus technology and function
blocks used in the Rosemount 2230 Series, refer to Appendix C: Foundation
fieldbus Block Information and the FOUNDATION Fieldbus Block Manual
(Document No. 00809-0100-4783).
4.8.1 Block Operation 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. 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; 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 diagnostics, 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 Graphical Field Display. It contains device information
including diagnostics and the ability to configure, set to factory defaults and
restart the 2230 Display.
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.
Display Transducer Block (TB1300)
The Display Transducer Block includes parameters for setup of the
Rosemount 2230 Graphical Field Display for use in a Fieldbus system. It
handles mapping of the MAO block inputs to the various field device outputs.