SMAR FP302, Owner'S Operation And Maintenance Manual

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INTRODUCTION
The
FP302 belongs to the first generation of Foundation Fieldbus devices. It is a converter mainly
intended for interfacing a Fieldbus System to a Pneumatic valve or actuator. The FP302 produces a
3-15 psi or 3-30 psi output proportional to the input received over the Fieldbus network. The digital
technology used in the
FP302 enables an easy interface between the field and the control room and
several interesting features that reduce considerably the installation, operation and maintenance
costs.
The
FP302 is part of Smar's complete 302 line of Foundation Fieldbus devices.
Fieldbus is not only a replacement for 4-20 mA or intelligent / smart transmitter protocols, it contains
much more. Fieldbus is a complete system enabling distribution of the control function to equipment
in the field.
Some of the advantages of bi-directional digital communications are known from existing smart
transmitter protocols: Higher accuracy, multi-variable access, remote configuration and diagnostics,
and multi-dropping of several devices on a single pair of wires.
Using Fieldbus technology, with its capability to interconnect several devices, very large control
strategies can be designed. In order to be user friendly, the function block concept was introduced
(users of Smar CD600 should be familiar with this, since it was implemented many years ago). The
user may now easily build and overview complex control strategies. Another advantage is added
flexibility; one can edit the control strategy without having to rewire or change any hardware.
The
FP302 , like the rest of the 302 family, has several Function Blocks built in, like PID controller,
Input Selector and Splitter/Output Selector, eliminating the need for separate device. Such features
improve the communication quality and thereby less dead-time and faster control, not to mention the
reduction in cost.
When designing the entire 302 line of Fieldbus devices, Smar considered the needs of both small
and large systems. They have in common being able to act as a master on the network and be
configured locally using a magnetic tool, eliminating need of a configurator or console in many basic
applications.
Get the best result of the FP302 by carefully reading these instructions.