Installation Instructions

Glossary-2 ValveLink Software
firmware revision
The revision number of the instrument firmware.
Firmware is a program that is entered into the
instrument at the time of manufacture and cannot be
changed by the user.
hardware revision
Revision number of the Fisher instrument hardware.
The physical components of the instrument are
defined as the hardware.
HART
Acronym: Highway Addressable Remote
Transducer.
Input current
The current signal from the control system that
serves as the analog input to the instrument.
Input signal
The current (or voltage) signal from the control
system.
Instrument Society of America (ISA)
A professional organization of designers,
manufacturers, and users of process control
instrumentation.
Instrument level
Determines the functions available for the
FIELDVUE instrument.
ISA
Acronym: Instrument Society of America
Long Address
A unique identifier that includes the manufacturer
ID, device type, and device ID embedded in the
instrument at the factory. ValveLink software uses
this unique identifier to send messages to the
instrument.
memory
A computer’s storage for programs and data. Most
computers and microprocessors have both internal
and external memories: use of internal memories is
faster, but the capacity of internal memories is more
limited.
operating system
The software that controls and supervises all the
internal operations of a computer.
parallel
Simultaneous: said of data transmission on two or
more channels at the same time.
PCI
Peripheral Component Interconnect − a computer
bus standard
primary master
Masters are communicating devices. A primary
master is a communicating device typically
permanently wired into the instrument in the field.
You can establish either a communicating device in
the control room or a PC running ValveLink software
as the primary master for an instrument. In contrast,
a hand-held communicator is a secondary master
because it is not permanently wired into the
instrument.
RAM
Acronym: Random Access Memory
random access memory (RAM)
A type of semiconductor memory. A user can read
from and write to a RAM, electrically, as often as
desired.
read-only memory (ROM)
A memory in which information is stored
permanently. A user can examine ROM contents as
often as desired but cannot change the contents.
ROM
Acronym: Read-Only Memory
Secondary Master
See Primary Master