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8    Wireless Technology
  540 General Product Information



        Wireless Technology in the Industrial       Bluetooth — Robust, Flexible,        WLAN — Full
                                                           ®
        Environment                                 High-Performance                     IT Integration

        Wireless technology can support wired   Well-known in consumer electronics, Bluetooth    WLAN makes it easy to setup a wireless trans-
                                                                         ®
        applications or enable completely new ap-  technology is also well-suited to industrial use with   mission link for ETHERNET protocols. This can be
        plications. In mobile or movable systems,   its internationally approved frequency range, a   standard ETHERNET protocols, e.g., for commu-
        wireless technology is the first choice when   very robust transmission technology (frequency   nication between a smartphone and automation
        greater distances or obstacles must be   hopping), real-time response and a range of   components. Industrial fieldbus protocols such as
        overcome. It is an alternative for applica-  up to 1000 m. It makes wireless process data   PROFINET, MODBUS/TCP or Ethernet/IP can also
        tions in which wired solutions are not   communication between two stations possible   be used to link mobile equipment with stationary
        economical or technically feasible.   (point-to-point communication), and also enables   equipment. Ranges up to 400 m are possible
                                                                       ®
                                           the setup of a piconet in which a Bluetooth    depending on the transmission technology used.
        Various wireless technologies can be used   master can communicate with up to seven slaves,
        depending on the application.      e.g., decentralized mobile sensors. In addition,
                                                 ®
                                           Bluetooth  can be used as the radio system for
                                           commissioning.
                                           Features:
                                           • Secure transmission (encrypted)
                                           • AFH (Adaptive Frequency Hopping)
                                           • Adaptive transmission power
                                           • Uses the license-free                               ®
                                                                                          EnOcean — The Radio Stan-
                                             2.4GHz frequency band
                                                                                          dard in Building Automation
                                                                              Wireless switches and sensors based on
                                                                                    ®
                                                                              EnOcean  technology harvest available energy
                                                                              to power themselves, e.g., kinetic energy from
                                                                              actuating a switch or sensors powered by ambient
                                           GPRS for Remote Connections
                                                                              light. This energy harvesting completely eliminates
                                           For applications that go beyond site boundaries,   maintenance of the radio transmitter at a range of
                                                 ®
                                           TO-PASS  telecontrol technology provides the right
                                                                              up to 300 m in open air (30 m in buildings).
                                           solution. More detailed information on
                                                 ®
                                           TO-PASS  is available in Section 9.












                                            ●  Always the right radio system
                                              for the industry and application

                                            ●  Industrial design: high-performance,
                                              robust and safe


                                            ●  Tightly integrated into WAGO automation technology
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