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 MeterLinkTM (a Windows®-based interface software)

1.3Acronyms, abbreviations and definitions

Table 1-1 Acronyms, abbreviations and definitions
Acronym or abbreviationDefinition

°

degree (angle)

 

 

oC

degrees celsius (temperature unit)

oF

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 MeterLinkTM

Daniel Ultrasonic Meter interface software

 

 

DI

Digital Input

 

 

DO

Digital Output

 

 

DHCP

Dynamic Host Configuration Protocol

 

 

dm

decimeter (10-1meters, length unit)

ECC

Error Correction Code

 

 

EEPROM

Electrically-Erasable, Programmable Read-Only Memory

 

 

Flash

non-volatile, programmable read-only memory

 

 

f3

cubic foot

f3/s

Cubic foot per second

2

Acronyms, abbreviations and definitions