Wireless HART gateway with integrated WLAN transceiver
04 May 2010
Phoenix Contact is now offering a Wireless HART Gateway that has an integrated WLAN transceiver. The gateway, which can be snapped onto a mounting rail, connects up to 250 Wireless HART field devices.
It converts HART data into ModbusTCP or HART UDP – therefore allowing simple integration into almost all host systems. Using Wireless HART, a component of HART 7, new systems can be installed in just a fraction of the time required for hard-wired networks. Further, this gateway allows existing wired HART field devices to be integrated into the HART system via a Wireless HART adapter.
The integrated WLAN can be used as backhaul connection; this means that the gateway can be installed closer to the devices to be monitored in the field. This allows users to create a "cluster" network topology with several smaller Wireless HART networks, which have a wireless connection to the host system. As an alternative, an Ethernet port is available for hard-wired solutions.
WLAN data are protected using the 802.11i standard (WPA2) with a 128-bit AES encryption to establish secure data links. All programming and diagnostic functions are called up via an integrated Web server. The gateway can be optionally programmed using a HART handheld programming device.
With Wireless HART, the same maintenance and diagnostic tools are used as for the conventional wired HART devices. This means that only a low amount of user training is required.
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