Danfoss VLT DeviceNet MCA 104, Installation Manual

Page: 5 / 18

1.6 Symbols, Abbreviations and
Conventions
Abbreviation Definition
ACK Acknowledge
BOC Bus off counter
BOOL Boolean expression
CAN Controller area network
CSMA/CA Carrier sense multiple access/collision avoidance
COS Change of state
CTW Control word
EDS Electronic data sheet
EMC Electromagnetic compatibility
ETR Electronic thermal relay
FIFO First In first out
HF High frequency
HPFB High performance field bus
I/O Input/output
ISO International standards organization
LCD Liquid crystal display
LED Light emitting diode
LSB Least significant bit
MAC ID Media access control identifier
MAV Main actual value
MRV Main reference value
MSB Most significant bit
N/A Not applicable
ODVA Open deviceNet vendor association
OSI Open systems interconnection
PC Personal computer
PCD Process data
PIW Peripheral input word
PLC Programmable logic control
PNU Parameter number
PPO Parameter-process data object
QW Peripheral output word
SINT Signed integer
STW Status word
VSD Variable speed drive
UDINT Unsigned double integer
UNIT Unsigned integer
USINT Unsigned short integer
Table 1.1 Symbols and Abbreviations
Conventions
Numbered lists indicate procedures.
Bullet lists indicate other information and description of
illustrations.
Italicised text indicates:
•
Cross reference
•
Link
•
Parameter name
Introduction Installation Guide
MG33D502 Danfoss A/S © Rev. 03/2015 All rights reserved. 3
1 1