Emerson FloBoss S600+, Instruction Manual

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S600+ Instruction Manual
Revised July-2017 Glossary A-5
Modem Mod ulator De modulator; a device used to communicate with other equipment using a
telephone network.
Modulate Superimposing one signal upon another.
MOV M otor O perated V alve; a valve that is motorized and requires a signal to drive the
valve open, a signal to drive the valve closed, and has a two signals returning to the
S600 to describe the valve as being open, closed, moving, or illegal.
Multiplexor Multiple Input Selector.
N
Noise Random electrical interference.
Non-volatile
Memory Memory type that retains data when the power supply is disconnected.
NX-19 An AGA report developed for the calculation of supercompressibility factors.
O
Object Generally, any item that can be individually selected and manipulated. This can
include shapes and pictures that appear on a display screen as well as less-tangible
software entities. In object-oriented programming, for example, an object is a self-
contained entity that consists of both data and procedures to manipulate the data.
Octal Numbers in base 8 (that is, numbers 0 through 8).
Off-line Accomplished while the target device is not connected (by a communications link). For
example, “off-line configuration” refers to configuring an electronic file that is later
loaded onto the S600.
On-line Accomplished while connected (by a communications link) to the target device. For
example, “on-line configuration” refers to configuring an S600 while connected to it, so
you can view the current parameter values and immediately load new values.
Open Collector Digital output that is driven by a transistor and requires external power.
Opto-Isolator Optical device for connecting signals while maintaining electrical isolation.
Overrange Over the preset current limit for the A/D Converter.
P, Q
PCB P rinted c ircuit b oard.
PID Three-term control action that uses P roportional, I ntegral, and D erivative components
to modify a control output, with the goal of achieving a measured process variable at a
set point.
Peer to Peer
Link Communications mode implemented by giving each communication node both server
and client capabilities.
Port Group of inputs or outputs to the computer.
Program Series of instructions.
Protocol Precise description of data interchange over a telemetry link.
Prove
Sequence
An order of events set into the S600 to perform a calibration (or
“prove”) of flow
balancing, stability checking, or valve-routing.
PRT P latinum r esistance t hermometer. See also RTD.
PSU P ower s upply u nit.
PTZ
Calculation of Compressibility, Relative Density and Line Density using the Solartron
7915 PTZ method.
R
RAM R andom- a ccess m emory. Volatile memory that becomes unreliable when power is
removed from the computer.
Relative Density
(RD)
Liquid relative density: the ratio of the mass of a given volume of liquid at 15°C (or
other standard temperature, such as 60°F) to mass of an equal volume of pure water
at the same temperature. When reporting results, explicitly state the standard