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150 Glossary

7 Glossary

Bit

Smallest information unit. Its value can either be 1 or

 

0.

Bitrate

Number of bits transmitted within a time unit.

Bootstrap

Operating mode of the fieldbus Coupler / Controllers.

 

Device expects a firmware upload.

Bus

A structure used to transmit data. There are two

 

types, serial and parallel. A serial bus transmits data

 

bit by bit, whereas a parallel bus transmits many bits

 

at one time.

Byte

Binary Yoked Transfer Element. A byte generally

 

contains 8 bits.

Data bus

see Bus.

Fieldbus

System for serial information transmission between

 

devices of automation technology in the process-

 

related field area.

Hardware

Operating system

Segment

Electronic, electrical and mechanic components of a module/subassembly.

Software which links the application programs to the hardware.

Typically, a network is divided up into different physical network segments by way of routers or repeaters.

Server

Device providing services within a client/server sys-

 

tem. The service is requested by the Client.

Subnet

A portion of a network that shares the same network

 

address as the other portions. These subnets are dis-

 

tinguished through the subnet mask.

WAGO-I/O-SYSTEM 750

DeviceNet

Literature List • 151

8 Literature List

Controller-Area-Network

Grundlagen, Protokolle, Bausteine, Anwendungen Konrad Etschberger

2., völlig überarbeitete Auflage

2000 Carl Hanser Verlag München Wien ISBN 3-4446-19431-2

Further information on web pages:

The ODVA provides further documentation on DeviceNet. www.odva.org

CAN in Automation (CiA) provides further documentation on CAN. can-cia.de

WAGO-I/O-SYSTEM 750

DeviceNet

152 Index

9 Index

 

C

 

carrier rail ...............................................................................

15, 18

contacts

 

data-.......................................................................................

19

power-....................................................................................

26

Controller..................................................................................

8, 38

Coupler ..........................................................................................

8

Cycle time ...................................................................................

70

D

 

data contacts ................................................................................

19

E

 

Electrical isolation ..................................................................

42, 65

F

 

Fieldbus interface ........................................................................

70

Fieldbus node .............................................................................

108

Fieldbus start ...............................................................................

70

Flag..............................................................................................

70

Flags ............................................................................................

80

Flash memory ..............................................................................

70

H

 

Hardware reset.............................................................................

67

I

 

I/O modules ................................................................................

105

Address range ........................................................................

79

IEC 61131-3 ...............................................................................

103

Internal bus.....................................................................

63, 70, 101

L

 

Light diodes...........................................................................

43, 66

locking disc .................................................................................

17

Loop ............................................................................................

70

O

 

Operating mode

 

RUN.......................................................................................

67

STOP .....................................................................................

67

Operating mode switch ...............................................

67, 70, 76, 84

P

 

PFC cycle.....................................................................................

76

PLC cycle ....................................................................................

70

PLC program ...............................................................................

70

Power contacts.......................................................................

20, 26

not carried out........................................................................

27

power jumper contacts.................................................................

43

Process image ...........................................................

46, 60, 70, 103

R

 

RAM............................................................................................

70

RUN ............................................................................................

70

S

 

Start-up ........................................................................................

70

STOP ...........................................................................................

70

Subnet........................................................................................

150

T

 

Times...........................................................................................

70

U

 

unlocking lug...............................................................................

17

V

 

Variables......................................................................................

67

W

 

WAGO-I/O-PRO 32 .........................................................

68, 83, 87

WAGO-I/O-SYSTEM 750

DeviceNet

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