Wireless Profibus

The Wireless Profibus extenders are available in both Profibus Master and Slave functionality, and will connect to a Profibus DP LAN at full bus speed of 12 Mb/s. Featuring an internal 900MHz license-free radio, the Wireless Profibus units can transmit more than 20 miles line-of-sight or up to one mile in a congested plant or factory environment, says the vendor. The 905U-G-PR can be used to extend a central Profibus LAN to multiple remote Profibus devices; link separate Profibus LANs; form multiple Profibus slave devices into a wireless LAN without the need for a Profibus master; and provide firewall and encryption security for Profibus extensions. Because the 905U-G-PR units form part of the vendor’s Wireless Information Backbone, the Wireless Profibus units can also communicate directly to other data buses.