Industrial Communication Systems

1-6 Industrial Communication Systems

1.4 Dynamic Behavior of Services and Protocols

Figure 1.5 shows a common example of communication that runs over an intermediate station, e.g., a router.

One side, e.g., the le side, starts transmitting a message, which is done by the application using the applica-

tion layer. Communication runs vertically down to layer 1, horizontally through the router to the receiving

device,

and

vertically

up

to

the

application

in

the

receiving

device.

is

communication

can

also

be

seen

as

parallel horizontal communications that run between each layer as peer-to-peer communications.

Due to the modularization that the ...