Wireless Communication

Wireless communication is becoming more and more common in automation systems, BACnet, KNX etc. It integrates into different communication protocols such as. Wireless communication has become more important, especially as applications become more and more mobile.

Why Wireless Communication

  • New possibilities Applications that cannot be done without radio communication Example: mobile systems
  • Cost reduction
  • change of cable
  • Connection and commissioning costs

Where can I use it?

  • Critical transmission (Scraper – Electric rotating systems)
  • Mobile applications (automated systems, robot applications, cranes)
  • Ever-changing apps
  • Building automation (EnOcean-Switch and sensors etc.)

What are Wireless Systems?

  • Bluetooth
  • ZigBee
  • EnOcean
  • RFID
  • WLAN
  • Wireless hart
  • Z-wave …

In wireless communication;

  • Wireless transmission of information
  • Information carrier electromagnetic wave (EMW)
  • EMW is propagated by light velocity and is dependent on frequency and amplitude
  • Propagation is linear only in vacuum environments and exposed to interference effects in terrestrial environments
Wireless Communication

Bluetooth

  • Class 1 – 100 mW (max. EIRP)
  • Class 2 – 2.5 mW
  • Class 3 – 1 mW
  • Topology: Star (1 Master, max. 7 active Slaves)
  • 3 Mbit / s gross
  • Frequency Hopping Scattered Spectrum
  • (FHSS), max.1600 hops / s over 79 channels 1 MHz
  • Very robust and narrow interference tape

Wlan

  • Dep. Band 30 – 1000mW permissible EIRP (max 100 mW with 2.5 GHz)
  • Unlicensed ISM-Band 2.4- 3.4 (b / g) or 5 GHz (a / h)
  • 2.4 GHz Band 11 channels, only 3 (25 MHz Bandbreite) are provided without overlap
  • Data rates: 1-108 Mbit gross

EnOcean

  • SRD-Frequency band (Duty Cycle limitation) 868-870 MHz
  • Ultra Low Power
  • Suitable for battery-free operation
  • Low Data Rates
Wireless Communication

With Enocean technology, you can communicate wirelessly even without batteries.

With WAGO EnOcean wireless technology, it adds value to you technically and aesthetically, integrated into building automation. EnOcean based wireless switches and sensors work with the energy they provide from the environment; The switches convert kinetic energy into electricity during pressing, while the temperature sensor generates electricity with solar.

Each device has its own identification address and communicates with a receiver unit. Although there are low power devices, the signal strength is extremely good. It can communicate up to 300 meters in open area and 30 meters in closed area. The number of companies producing products in the EnOcean protocol is increasing day by day and it is very easy to integrate with WAGO under BACnet or KNX.

RFID

  • Multiple Frequency Bands (100 kHz to 2.5 GHz)
  • Applications: Logistics, Tracking, Health, Barcode changes,…
  • Low data rate / Duty Cycle
  • Receiver is always active, Transmitter is almost passive

Bluetooth RF- Transmitter

  • Mailbox Module
  • Wireless communication between two or up to 8 participants
  • Standard: Bluetooth 2.0 + EDR
  • Ad-hoc and real-time mode
  • Ad-hoc: communication with external components
  • Real time: only 750-644
  • communication configuration: I / O Check, CoDeSys
  • cycle times <10ms

Typical distance

  • Typically 100 m in buildings
  • Within 1000m line of sight

Diagnosis

  • Attempt
  • Signal quality
  • Time out

Benefits

  • Short cycle times
  • Long distances
  • Easy integration into common fieldbus systems

 

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