2. What is Fieldbus?
2.3. Fieldbus Terms
R400 Experion PKS Series A Fieldbus Interface Module User's Guide 31
July 2010 Honeywell
Term Abbreviation Description
Resource File
The part of the Capability file that is supplied by the
manufacturer. It describes the communication profile,
device capacity, internal record address assignments,
and certain default values for a field device. A
Capability file that has only this content is often called
a Resource file.
Standard Dictionary
A Fieldbus Foundation file that contains standard
strings and enumerations. A compressed form of the
file is called the IMPORT.DCT and it is used by the
Type function in Control Builder.
Symbol File SYM
Contains symbolic names that were used in the DDL
file for the FBAP of the device. It is produced by the
Fieldbus Foundation Tokenizer.
Virtual
Communications
Relationship
VCR
Sets up communications for host to talk to a device. It
acts like a speed dialer to provide for the transfer of
data between applications. F
OUNDATION Fieldbus
describes these three types of VCRs:
Publish/Subscribe
Client/Server
Source/Sink
Virtual Field Device VFD
The management or FBAP section of a device that is
addressable by a VFD tag.
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