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Introduction
Introduction
Fieldbus is not a replacement for 4-20 mA or Intelligent/Smart Transmitter Protocols, it provides
much more. Fieldbus is a complete Control System Architecture enabling distribution of the
control function to equipment in the field; therefore it is a replacement for the DCS Architecture of
the 1970s.
To achieve the desired control the devices must be configured. That includes calibration but also
building of a control strategy. The latter is covered in this manual.
One of the major advantages of Fieldbus is interoperability. Some blocks described in this
manual are used not only by Smar devices, but other Foundation Fieldbus devices too. No
particular configuration tool is addressed in this manual, because the devices are independent of
configuration tool due to the DD technology.
Get the best results of the Fieldbus System by carefully reading these instructions.
This manual presents the necessary background knowledge to understand the programming
language of Function Blocks diagram focusing on Foundation Fieldbus technology.
Besides that, it is explained in details blocks supported by the following devices:
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LD292/LD302
TT302
IF302
TP302
FY302
FP302
FI302
FB700
DC302
DFI302
HI302 (all types)
DT302
FR302
Other Smar devices, that are members of System 302, may not be covered by this manual,
because they have specific manuals.
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