Emerson Rosemount 5900S Series, Справочное руководство, Страница: 133 / 298

4.8 F
OUNDATION
™
Fieldbus overview
This section covers basic configuration procedures for the Rosemount 5900S Radar Level
Gauge with F
OUNDATION
Fieldbus.
For detailed information about F
OUNDATION
Fieldbus technology and function blocks used
in the Rosemount 5900S Series, refer to F
OUNDATION
™ Fieldbus Block Information and the
F
OUNDATION
Fieldbus Blocks Reference Manual (Document No. 00809-0100-4783).
4.8.1 F
OUNDATION
™
Fieldbus block operation
Function blocks within the fieldbus device perform the various functions required for
process control. Function blocks perform process control functions, 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. 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.
Measurement transducer block (TB1100)
The Measurement transducer block contains device information including diagnostics and
the ability to configure, set to factory defaults and restart the level gauge.
Register transducer block (TB1200)
The register transducer block allows a service engineer to access all database registers in
the device.
Advanced configuration transducer block (TB1300)
The Advanced Configuration transducer block contains parameters for setup and
configuration of the advanced level measurement and echo tracking functions.
Volume transducer block (TB1400)
The Volume transducer block contains parameters for configuration of volume
calculations.
Reference Manual Configuration
00809-0100-5900 September 2019
Rosemount 5900S Radar Level Gauge 133