Материал: m083300e
Glossary • 147
8 Glossary
B
Operating system
Software, which links the user programs with the hardware.
Bit
Smallest information unit. Its value can either be 1 or 0.
Bit rate
Number of bits transmitted within a time unit.
Bus
Line for bit serial or bit parallel, clocked data transfer. A bus for the bit parallel data transmission comprises of address, data, control and supply bus. The width of the data bus (8-,16-, 32-, 64 bit) and its clock speed is decisive for the speed at which data can be transferred. The address bus width limits the possible architecture of a network.
Byte
Binary Yoked Transfer Element. A data element greater than one bit and smaller than a word. Generally a byte contains 8 bits. With a 36 bit computer a byte may contain 9 bits.
Bootstrap
Operating mode of the fieldbus coupler /controller (750-333 and 750-833) in in which the device awaits a firmware upload.
D
Data bus
see Bus.
F
Fieldbus
System for serial information transmission between devices in automation technology in field areas close to the process.
WAGO-I/O-SYSTEM 750 |
D R A F T |
PROFIBUS |
2001-02-27 |
148 • Glossary
H
Hardware
Electronic, electric and mechanical components of an assembly group.
S
Segment
A network is generally structured by Router or Repeater in various physical network segments.
Server
Serving device within a Client Server System. The service to be provided is requested by the Client.
Sub-network
Sub-division of a network into logical sub-networks.
D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |
Literature list • 149
9 Literature list
Further information
i The PNO provides further documentation for its members in INTERNET. Cable specification information can be obtained from, for example, the „Installation Guideline for PROFIBUS-FMS/DP", 2.112
http://www.profibus.com/
WAGO-I/O-SYSTEM 750 |
D R A F T |
PROFIBUS |
2001-02-27 |
150 • Index
10 |
Index |
|
C |
|
|
CAGE CLAMP®.......................................................................... |
11 |
|
carrier rail ...................................................................................... |
|
8 |
Carrier rail |
..................................................................................... |
9 |
Grounding.............................................................................. |
11 |
|
Configuring the process data channel.......................................... |
38 |
|
contacts |
|
|
power ..................................................................................... |
|
15 |
Controller....................................................................................... |
|
5 |
Coupler.......................................................................................... |
|
5 |
Cycle time.................................................................................... |
|
83 |
D |
|
|
data contacts................................................................................ |
10 |
|
E |
|
|
Electrical isolation................................................................. |
24, 79 |
|
end module .................................................................................... |
7 |
|
end module .................................................................................... |
5 |
|
Example application .............................................................. |
34, 92 |
|
F |
|
|
Fault on the fieldbus .................................................................... |
80 |
|
Fault on the fieldbus ................................................ |
25, 66, 80, 125 |
|
Fieldbus failure.................................................................... |
71, 129 |
|
fieldbus interface ......................................................................... |
77 |
|
Fieldbus interface ........................................................................ |
83 |
|
fieldbus nodes................................................................................ |
5 |
|
Fieldbus start ............................................................................... |
83 |
|
Flag........................................................................................ |
|
82, 83 |
Flash memory .............................................................................. |
83 |
|
fuse holder ................................................................................... |
12 |
|
H |
|
|
Hardware reset............................................................................. |
82 |
|
I |
|
|
I/O module..................................................................................... |
7 |
|
Internal bus...................................................................... |
22, 77, 83 |
|
Internal bus fault.................................................................. |
72, 130 |
|
L |
|
|
Light diodes.......................................................................... |
25, 80 |
|
Locking disc .................................................................................. |
9 |
|
Loop ............................................................................................ |
|
83 |
N |
|
Node .............................................................................................. |
5 |
O |
|
Operating mode |
|
RUN....................................................................................... |
82 |
STOP ..................................................................................... |
82 |
Operating mode switch.......................................................... |
77, 83 |
P |
|
PLC cycle .............................................................................. |
82, 83 |
PLC program ............................................................................... |
83 |
power jumper contact |
|
not installed ........................................................................... |
15 |
power jumper contacts................................................................. |
10 |
power supply |
|
field side ................................................................................ |
13 |
System ................................................................................... |
13 |
Process image .............................................................................. |
83 |
R |
|
RAM............................................................................................ |
83 |
RUN ............................................................................................ |
83 |
Run-up......................................................................................... |
83 |
S |
|
STOP ........................................................................................... |
83 |
Sub-network .............................................................................. |
148 |
T |
|
Times........................................................................................... |
83 |
U |
|
unlocking lug................................................................................. |
9 |
V |
|
Variables...................................................................................... |
82 |
W |
|
WAGO-I/O-PRO 32 .................................................................... |
82 |
WAGO-I/O-SYSTEM 750............................................................. |
5 |
D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |