Acronyms

Acronyms used in Process Control and Automation

A

ABS – Acrylonitrile Butadiene Styrene
ACK – Acknowledgment
AI – Analog Input
AMD – Advanced Micro Devices
ANSI – American National Standards Institute: http://www.ansi.org
ANSI-C– American National Standards Institute- Programming Language
AO – Analog Output
API – Application Programming Interface
ARP – Address Resolution Protocol
ASCII – American Standard Code for Information Interchange
ASICs – Application Specific Integrated Circuits
AUI – Attachment Unit Interface

B

BNC – Bayonet Nut Connector
BOOTP – Bootstrap Protocol

C

CAN – Controller-area Network
CDC – Change Data Capture
CFC – Continuous Function Chart
CIP – Common Industrial Protocol
CIP – Control and Information Protocol
CMRR – Common-Mode Rejection Ratio
COB – Communication Object
COM – Component Object Model
CPU – Central Processing Unit
CRC – Cyclic Redundancy Check
CSC – Convertible Static Compensator
CSMA/CD – Carrier Sense, Multiple Access/Collision Detect

 

D

DCOM – Distributed Component Object Model
DEC – Digital Equipment Corporation
DHCP – Dynamic Host Configuration Protocol
DIO – Discrete Input/Output
DIP – Dual In-line Package
DIX – Digital Equipment Corp., Intel, and Xerox
DLL – Dynamic Link Library
DNS – Domain Name Server
DOS – Denial of Service
DOS – Disk Operating System

 

E

EBCDIC – Extended Binary Coded Decimal Interchange Code
ECM – Enterprise Contact Management
EDS – Electronic Data Sheet
EIA – Electric Industries Alliance: http://www.ecianow.org/
EMI – Electromagnetic Interference
ERP – Enterprise Resource Planning
ESD – Electrostatic Sensitive Devices

 

F

FBD – Function Block Diagram
FDDI – Fiber Distributed Data Interface
FOIRL – Fiber Optic Inter Repeater Link
FTP – File Transfer Protocol

 

G

GMII – Gigabit Media-Independent Interface
GND – Ground
GPIO – General Purpose Input/Output
GPS – Global Positioning System

 

H

HMI – Human Machine Interface
HSSDC – High Speed Serial Data Connector
HTTP – Hypertext Transfer Protocol
HVAC – Heating Ventilation & Air Conditioning

 

I

IANA – Internet Assigned Numbers Authority
IC – Integrated Chip
ICMP – Internet Control Message Protocol
IDC – Industrial Development Corporation: http://www.idc.co.za
IEC – International Electrical Commission: http://www.iec.ch
IEEE – Institute of Electrical and Electronics Engineers: http://www.ieee.org/portal/site
IETF – Internet Engineering Task Force: http://www.ietf.org
IGMP – Internet Group Management Protocol
IL – Instruction List
I/O – Input/Output
IP – Internet Protocol
IPV – Internet Protocol Version
ISA – Industry Standard Architecture: http://www.isa.org
ISDN – Integrated Services Digital Network
ISO – International Organization for Standardization

 

L

LAN – Local Area Network
LD – Ladder Diagram
LED – Light Emitting Diode
LQFP – Low- Profile Quad Flat Package

 

M

MAC – Media Access Controller
MAU – Media Attachment Unit
MES – Manufacturing Execution System
MIB – Management Information Base
MII – Media Independent Interface
MMF – Multimode Fiber
MOV – Metal Oxide Varistor

 

N

NAC – Navy Automation Controller
NCS – Network Computing System
NEMA – National Electrical Manufactures Association: http://www.nema.org
NFS – Network File System
NIC – Network Interface Card
NRT – Near Real Time
NRZ – Non-Return to Zero
NTP – Network Time Protocol
NVT – Network Viral Terminal

 

O

ODVA – ODVA formally (Open Devicenet Vendors Association): http://www.odva.org
OEM – Original Equipment Manufacturer
OFDM – Orthogonal Frequency-Division Multiplexing
OMAC – Open Modular Architecture Controls: http://www.omac.org
OPC – OLE for Process Control: http://www.opcfoundation.org
OS – Operating System

 

P

PAD – Portable Application Description
PARC – Plato Alto Research Center: http://www.parc.com
PCB – Printed Circuit Board
PCI – Peripheral Component Interconnect
PCMCIA – Personal Computer Memory Card International Association: http://pcmcia.org
PD – Powered Device
PDO – Process Data Object
PHY – Physical Layer
PID – Proportional Integral Derivative
PING – Packet InterNet Groper
PLC – Programmable Logic Controller
PoE – Power over Ethernet
PSE – Power Sourcing Equipment
PTO – Profinet Trade Organization: http://www.us.profibus.com
PUR – Polyurethane
PVC – Polyvinyl Chloride
PWM – Pulse-width Modulation

 

R

RAM – Random Access Memory
RARP – Reverse Address Resolution Protocol
RFID – Radio-Frequency Identification
RH – Relative Humidity
RJ – Registered Jack
RMON – Remote MONitoring
ROM – Read-Only Memory
RPC – Remote Procedure Call
RS– Recommended Standard
RT – Real Time
RTOS – Real Time Operating System
RTPS – Real Time Publish/Subscribe
RTU– Remote Terminal Unit
Rx – Receive
RZ – Return to Zero

 

S

SAE – System Architecture Evolution
SCADA – Supervisory Control and Data Acquisition
SDO – Service Data Object
SFC – Sequential Function Chart
SLC – Smart Link Communication
SMTP – Simple Mail Transfer Protocol
SNA – Systems Network Architecture
SNMP – Simple Networking Management Protocol
SOAP – Simple Object Access Protocol
SPI– Serial Peripheral Interface
SSID – Service Set Identifier
SSL – Server-Side Language
ST – Structured Text
STP – Shielded Twisted Pair

 

T

TCI – Tag Control Info
TCP – Transmission Control Protocol
TFTP – Trivial File Transfer Protocol
TIA – Telecommunications Industry Association: http://www.tiaonline.org
TLS – Transport Layer Security
TOS – Type of Service
TTL – Time to Live
TTL – Transistor-Transistor Logic
Tx – Transmit-Out

 

U

UCMM – Unconnected Message Manger
UDP – User Datagram Protocol
UNIX – Uniplexed Information and Computing System
UTP – Unshielded Twisted-Pair

 

V

VAC – Volts of Alternating Current
VDC – Volts of Direct Current
VFD – Variable Frequency Drive
VIN – Vehicle Identification Nubmer
VPN – Virtual Private Network

 

W

WAN – Wide Area Network
WEP – Wired Equivalent Privacy
WPA– WiFi Protected Access: http://www.wi-fi.org/
WPAN – Wireless Personal Area Networks