DCN (Direct CNC Networking) :
Two different networks
Bluetooth Fundamentals :
Harald bluetooth king of Denmark in the
Bluetooth 1.0 has 1Mbps maximum
Bluetooth 2.0 has 3Mbps maximum
It is a radio-frequency standard
Bluetooth Technology :
It uses low power waves about 1 milliwatt.
Its range is 10m.
It can connect 8 devices simultaneously.
It uses SS-FH technology.
It uses ISM frequency band (between
2.402GHz and 2.48GHz).
SS-FH Technology :
SS-FH = Spread Spectrum Frequency
A device randomly uses one of 97
SS-FH Technology (cont):
The transmitting device changes
frequency 1600 times every second.
Interference will be small and over short
period of time.
The random change in frequency is done
in regular way (using generative codes).
Building Bluetooth network
It uses master/slave.
Building piconet is divided into steps:
Each unit has an
Each master has a
range of addresses.
Master asks for
response from units in
Master and each
slave agree on the
What Bluetooth has to do with DNC
Replacing the serial
connection by using a
Industrial Bluetooth network :
This networks are build over two levels
Piconets are build by replacing the master
with an access point. This access point is
the gateway between the Ethernet and the