Industrial Communication Systems

xx Preambles

In order to cater to highly demanding control applications with tight timing constraints, such as

motion

control,

a

number

of

modications

have

been

proposed

in

the

past

few

years

that

are

aimed

at

further

enhancing

the

real-time

behavior

of

Ethernet.

While

relying

on

the

same

transceivers,

frame

for-

mat,

and

access

scheme

as

the

original

protocol,

changes

were

added

to

the

original

Ethernet

hardware

or

communication

stack.

is

is

the

case,

for

example,

of

EtherCAT,

Ethernet

Powerlink,

PROFINET

IRT,

an

d

so on

.

e fo

llowing

ch

apters

(C

hapters

37 th

rough

40

)

fo

cus

on so

me

of th

ese

so

lutions.

Group 3.3: Building Automation Networks

Modern building automation networks are based on distributed networks where network topologies are ...