Appendix A - Glossary - Emerson FloBoss 107 Instruction Manual

Appendix A – Glossary
A
A/D Analog to Digital signal conversion.
ABS Acrylonitrile Butadiene Styrene.
ADC Analog to Digital Converter. Used to convert analog inputs (AI) to a format the flow
computer can use.
American Gas Association. A professional organization that oversees the AGA3
AGA
(orifice), AGA5 (heating value), AGA7 (turbine), AGA8 (compressibility), and AGA11
(ultrasonic) gas flow calculation standards. See http://www.aga.org.
AWG American Wire Gauge.
Analog Input.
AI
AO Analog Output.
Analog Analog data is represented by a continuous variable, such as an electrical current
signal.
A device that uses Pitot tubes to measure the gas flow rate within a pipeline. The gas
Annubar
volume is calculated from the difference between the flowing pressure and the static
pressure of the gas.
AP Absolute Pressure.
API American Petroleum Institute. See http://www.api.org.
A user-defined grouping of database entities.
Area
ASCII American (National) Standard Code for Information Interchange.
Attribute A parameter that provides information about an aspect of a database point. For
example, the alarm attribute is an attribute that uniquely identifies the configured value
of an alarm.
B
BMV Base Multiplier Value, used in AGA7 (turbine) calculations.
BPS Bits Per Second, associated with baud rate.
BTU British Thermal Unit, a measure of heat energy.
Built-in I/O I/O channels that are fabricated into the ROC and do not require a separate option.
Also called "on-board" I/O.
C
C1D2 Class 1, Division 2 hazardous area
Complementary Metal Oxide Semiconductor, a type of microprocessor used in a ROC.
CMOS
Coil Digital output, a bit to be cleared or set.
COL Ethernet Packet Collision.
Issued Feb-07
Note: This is a generalized glossary of terms. Not all the terms may
necessarily correspond to the particular device or software described in
this manual. For that reason, the term "ROC" is used to identify all
varieties of Remote Operations Controllers (including ROC800-Series,
ROC300-Series, FloBoss
and FloBoss 407 units).
Glossary
FloBoss 107 Instruction Manual
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