For this system, a reliable wireless remote control system can be used to telemetrically connect ladle transfer cars to a central control center. Wireless communications can maintain real-time data access without compromising car mobility. AWK-5222’s are placed every 100 m to form bridge networks along the car tracks in order to create wireless network coverage across the entire plant. Thanks to dual RF channels, the AWK-5222 can easily create redundant or two-way cascade links and form a bridge network by running the same device in both master and slave mode. This optimizes the efficiency and cost-effectiveness of each wireless unit while maintaining a throughput rate of up to 25 Mbps. The AWK-5222 nearest the control room links the wireless backbone to Ethernet via an unmanaged EDS-208A switch.

The AWK-6222 is installed as a redundant client in the ladle transfer cars, which connect to the PLC that remotely controls and monitors car location and furnace operating conditions. To connect the ladle transfer car to the wireless backbone, the AWK-6222 units are configured as a redundant AP and linked to AWK-5222 units using an Ethernet cable. The two independent RF modules are used to form a redundant wireless connection between the AP and client, which ensures communications reliability and safe operations. Fast roaming between APs ensures uninterrupted performance across the entire wireless coverage area.

A steel plant is a harsh operating environment that includes dust, smoke, vibration, EMI/noise, and extremely high temperatures. The AWK-6222 overcomes these hazards with an IP68 rating, -40 to 70°C operating temperature range, and level 3 EMS rating.