Wi-Fi (IEEE 802.11), a wireless technology deployed around the world to provide internet "hot-spots", is also well suited for monitoring, configuration, data acquisition, as well as time critical control applications.
The built‑in roaming functionality is useful in factory automation applications with moving devices. Implementing Wi‑Fi in these types of applications often requires tailored solutions or proprietary roaming software as well as frequency planning and specific installation techniques to achieve stabile latency and low roaming hand‑over delays.
- Range of 200 meters (up to 400‑500 meters with free line‑of‑sight) in the 2.4 GHz band and 50 meters in the 5 GHz band (with free line of sight up to 150 meters)
- Data throughput of 11 to 54 Mbit/s gross (~5 to 25 Mbit/s net) for IEEE 802.11b/g and 300 Mbit/s gross (~70 Mbit/s net for IEEE 802.11n)
- Security models like WEP, WPA, WPA2, TKIP and PSK EAP
- IEEE 802.11a operates on the 5 GHz band and provides the possibility for 19 additional non‑overlapping channels in addition to the three non‑overlapping channels in the 2.4 GHz band
- High availability in consumer products