Bluetooth ® Technology; Piconet; Profile And Identification; Figure 1: Piconet - WAGO I/O-SYSTEM 750 Manual

16 Bluetooth® Technology
® ®
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3 Bluetooth
Bluetooth
802.15.1. It allows license-free wireless communication in the ISM-band
frequency range between 2.402 and 2.480 GHz worldwide.
This technology is primarily used for data exchange between wireless input
devices or smartphones, but has also established itself in industrial applications.
Compared to other wireless technologies, only relatively low data rates are
achieved, but connections are very robust. Industrial implementations also allow
connections with ranges well beyond the ranges of devices for private use.
3.1

Piconet

Devices that use Bluetooth
One device assumes the master role and all others are slaves.

Figure 1: Piconet

Data is exchanged between the master and slave directly, but not between the
slaves themselves.
3.2

Profile and Identification

Bluetooth
have very different requirements. For example, transmission of a business card or
audio signal requires different protocols. Bluetooth
only certain protocols. To make identification of suitable partners easier for
devices, profiles have been defined. Communication between devices is then
possible when both devices support the same profile.
®
Technology
®
technology is wireless communication method based on IEEE
®
technology to communicate form a so-called piconet.
®
technology can be used in many ways. Supported applications can
WAGO-I/O-SYSTEM 750
750-644 Bluetooth
®
devices normally support
Version 2.0.0, valid from FW/HW Version 03/03
®
RF-Transceiver
Manual