Industrial Wireless

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					     Agenda


              Wireless access
              GSM basics
              GSM dial-up connection
              GPRS and EDGE connection
              GSM service comparison
              Wireless cable replacement



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     GPRS General Packet Radio Service

               IP 80.187.24.16          GPRS / Internet            IP 80.187.24.104


         )))                                                                     (((




     IP 80.187.24.16         Static IP 80.187.24.111                         IP 80.187.24.104

       Dynamic IP address allocated by the provider
       No direct dial-up to the modems (for standard networks)
       Data volume based billing -> always online
       Transmission speed 85600 Bit/s (in practice approx. 20000 Bit/s)
       Insecure connection

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      GPRS and EDGE
      with fix IP addresses

                        Internet            GPRS

        Router
                   VPN - Tunnel
                                                                        (((
                                       CDA Server 3.0



                                                                          IP 192.168.0.124
                                                           (((
     IP 192.168.0.123

                                                           IP 192.168.0.125

         The Vodafone–Server assign the private IP address by identifier of the SIM card
         Closed private network via GPRS
         Secure connection

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      GPRS and EDGE
      with dynamic IP addresses

     Panel
                                                                            PLC


                                      GPRS /
                                      EDGE          (((((                    PLC


                                      Internet
                                        VPN
                                                                   Switch
             Switch                   TCP/IP
     PC
                      FL mGuard VPN            PSI-MODEM-GSM/ETH
                                                                            IO


                               Secure connection



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     VPN      Virtual Private Network
     used by the PSI-Modem

     A very secure solution for VPN is
     IPsec (Internet Protocol security),
     which authenticates and encrypts
     each IP packet of a data stream.
     ESP (Encapsulation Security
     Payload), a part of IPsec, is
     packing every IP packet into an
     ESP packet.
     Due to NAT (Network Address
     Translation) this packet will not
     survive in a GPRS network.
     Therefore NAT-Traversal is
     additionally packing the ESP
     packet into a UDP packet (User
     Datagram Protocol).

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     Application example:
     Laundry machinery




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     Agenda


              Wireless access
              GSM basics
              GSM dial-up connection
              GPRS and EDGE connection
              GSM service comparison
              Wireless cable replacement



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      GSM dial-up, GPRS or EDGE
                                                                              (((   ))   )
                    GSM dial-up       GPRS                      EDGE
                    connection
     Charging      Time              Data volume                Data volume
     Connection    Direct connection TCP/IP network             TCP/IP network
     establishment by dial-up        -> Fix IP addresses or     -> Fix IP addresses or
                                      Server necessary          Server necessary
     Latency        Approx. 800 ms    Variable, up to 2         Variable, up to 900 ms
     (Signal delay) (Analog to GSM)   seconds                   (Depending on the
                    Approx. 1600 ms   (Depending on the         system load)
                    (GSM to GSM)      system load)
     Performance    9600 or 14400     Up to 42000 Bit/s         Up to 210000 Bit/s
                    Bit/s             (Practice: 20000 Bit/s)   (Practice: 100000 Bit/s)


     Process data acquisition -> GPRS or EDGE
     Remote maintenance with fast file transfer (to IPC’s) -> EDGE
     Remote maintenance (to PLC’s) -> GSM dial-up

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     The modem is depending on your application
     Remote…
      Maintenance
      Data acquisition
      Controlling
                             SERIA
                             SERIA
      Alarm messaging              L
                                   L
                         E T HE
                                R NE T

                             I/O
       Solutions for all
       applications:
          Serial, Ethernet, I/O
          Wireless or wired
                                          OG
                                           G
                                        LO
                                       AL




                                                 M
                                    AN




                                               GS
                                    A




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     Agenda


              Wireless access
              GSM basics
              GSM dial-up connection
              GPRS and EDGE connection
              GSM service comparison
              Wireless cable replacement



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     Wireless transmission of serial signals




      Wireless access to
      industrial controllers
         Bluetooth             Wireless access
         (Trusted Wireless)    from Ethernet to
                               industrial controllers
                                                        Wireless
                                  Bluetooth
                                                        Multipoint-networking
                                  WLAN
                                                           Bluetooth
                                                           Trusted Wireless


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     Mobile data access

     Programming / diagnostics access
      Access from a PDA or laptop with an
      internal Bluetooth interface to a
      control systems (PLC)



                                      (
                                ) ) (




      Access from a laptop with external
                                                 ((
      Bluetooth interface to a control      ))
      systems (PLC)


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     PROFIBUS cable replacement

                            PSI-Bluetooth-PROFIBUS-SET
                             Wireless PROFIBUS connections
                                   => 187,5 kbps
                                   => up to 150m
                            Plug-and-Play
                            1. Snap on DIN rail
                            2. Connect cable and power supply
                               Ready in approx. 1 Min.!
                            Set contents
                             PSI-Bluetooth-Converter
                             Omni antennas
     PSI-WL-PROFIB/BT-SET
                             RS232 cable
                            Preconfigured!

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     Application example:
     Waste water application

     Access to a mobile controller on a
     Circular scraper bridge
     (Point to point)




                                               ((
                                          ))




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     Application example:
     Centering a truck crankshaft


     Target:
     Substitution of slip rings


                                                      Balancing and
                                                      Diagnostic Systems




     Solution:
     Profibus over Bluetooth
     (Multipoint)                           ) ) ) )             ( ( ( ) ) )

                                  ) ) ) )


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     (   ((   ( ( ) ) ) ))




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