Glossary
G-8
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Signal
An extension of the IEEE 488.2 standard that defines a standard
programming command set and syntax for device-specific
operations.
Stack
A set of hardware registers or a reserved amount of memory used for
calculations or to keep track of internal operations.
Static library
A library of functions/subroutines that you must link to your
application as one of the final steps of compilation, as opposed to a
Dynamic Link Library, which links to your application at run time.
T
Tag
A name you can define for a block, virtual field device, or device.
Trend
A Fieldbus object that allows a device to sample a process variable
periodically, then transmit a history of the values on the network.
V
V
Volts
VCR
See
Virtual Communication Relationship.
VFD
See
Virtual Field Device.
Virtual Communication
Relationship
Preconfigured or negotiated connections between virtual field
devices on a network.
Virtual Field Device
The virtual field device is a model for remotely viewing data
described in the object dictionary. The services provided by the
Fieldbus Messaging Specification allow you to read and write
information about the object dictionary, read and write the data
variables described in the object dictionary, and perform other
activities such as uploading/downloading data and invoking
programs inside a device. A model for remotely viewing data
described in the object dictionary.
