Glossary • 127
WAGO-I/O-SYSTEM 750
DeviceNet
6 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 Electronic, electrical and mechanic components of a
module/subassembly.
Operating system Software which links the application programs to the
hardware.
Segment Typically, a network is divided up into different
physical network segments by way of routers or re-
peaters.
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.
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