SMAR FP302, Owner'S Operation And Maintenance Manual

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Section 3
3.1
CONFIGURATION
One of the many Fieldbus advantages is that the device configuration is independent from that of
the configurator or manufacturer. The FP302 can be configured through a third-party terminal or an
operational console. The following text is not meant for any particular configurator and this
information are applicable to any type. However, as Smar has its own Syscon configurator, the
examples and illustrations are based on this device.
The
FP302 is essentially an output transductor block. Moreover, the equipment has several auxiliary
blocks allowing the user to apply basic or advanced configurations.
The
FP302 includes a set of 19 blocks, as shown below. The complete description and configuration
of all FP302 blocks are described on the Functional Block Instructions Manual available on the Smar
internet page at http://www.smar.com/fieldbus.asp.
In addition, the
FP302 makes possible using block dynamic instantiation. This resource offers more
flexibility to build control strategies for the FP302.
RESOURCE DESCRIPTION
RS
RESOURCE – This block contains data specified for the hardware
associated to the resource.
TRANSDUCER
BLOCKS
DESCRIPTION
DIAG
DIAGNOSTIC TRANSDUCER – Supplies online measuring of the block
execution time, checks the links between blocks and other features.
DSP
DISPLAY TRANSDUCER – This block is supported by devices with LCD
display and can be used to monitor and to configure local block
parameters.
OUTPUT
TRANSDUCER BLOCK
DESCRIPTION
FP302
FIELDBUS PRESSURE TRANSDUCER – This is the FP302 transducer
block – a Fieldbus Pressure Converter.
CALCULATION AND
CONTROL
FUNCTIONAL BLOCKS
DESCRIPTION
PID
PID CONTROL – This is a standard block with several features, as:
setpoint treatment (value limitation and rate), filter and PV alarm,
feedforward, output tracking and others.
EPID
OPTIMIZED PID – Has all PID features, plus bumpless transfer from
manual mode to automatic mode or standard impact plus bias.
APID
ADVANCED PID – Has all Standard PID features, plus bumpless transfer
option or standard impact from manual mode to automatic mode and bias,
adaptable gain, PI sampling, dead error zone, special error treatment, ISA
or parallel algorithm.
ARTH
ARITHMETIC – This block calculates some ready-to-use pre-defined
equations for use on applications like flow compensation, HTG
compensation, rate control and others.
SPLT
DIVISOR – This block is used on two typical applications: split range and
seqüencial. Receives the PID block output, processing it according to the
selected algorithm and generates the values for two analog block outputs.
CHAR
SIGNAL CHARACTERIZER – Has capacity process two signals, based
on the same curve. The second input has an option to exchange “x” for “y “
and provides an easy way to use the inverted function, which can be used
to characterize the return.