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2 Acronyms, abbreviations and definitions
Section 1: Introduction Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual
May 2012 3-9000-771 Rev A
• Internet-ready communications
• Ethernet access
• Modbus TCP/IP
• On-board LED status indicators
• Analog pressure and temperature inputs
• Daniel MeterLink
TM
(a Windows
®
-based interface software)
1.3 Acronyms, abbreviations and definitions
Table 1-1 Acronyms, abbreviations and definitions
Acronym or abbreviation Definition
°degree (angle)
o
C
degrees celsius (temperature unit)
o
F
degrees fahrenheit (temperature unit)
ADC analog-to-digital converter
AI analog input
AMS® Suite Device Manager Asset Management Software - Device Manager
AO analog output
ASCII MODBUS A Modbus protocol message framing format in which ASCII characters are used to
delineate the beginning and end of the frame. ASCII stands for American Standard
Code for Information Interchange.
Backplane board Backplane board for CPU board, I.S Barrier board, Power Supply, and Acquisition
cable connections
boolean A type of data point that can only take on values of TRUE or FALSE (generally TRUE is
represented by a value of 1, FALSE is represented by a value of 0)
bps Bits per second (baud rate)
cPoise Centipoise (viscosity unit)
CPU Central Processing Unit
CTS Clear-to-Send; the RS-232C handshaking signal input to a transmitter indicating that
it is okay to transmit data – i.e., the corresponding receiver is ready to receive data.
Generally, the Request-to-Send (RTS) output from a receiver is input to the Clear-to-
Send (CTS) input of a transmitter.
DAC Digital-to-Analog Converter
Daniel MeterLink
TM
Daniel Ultrasonic Meter interface software
DI Digital Input
DO Digital Output
DHCP Dynamic Host Configuration Protocol
dm
decimeter (10
-1
meters, length unit)
ECC Error Correction Code
EEPROM Electrically-Erasable, Programmable Read-Only Memory
Flash non-volatile, programmable read-only memory
f
3
cubic foot
f
3
/s
Cubic foot per second