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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.

Wireless HART gateway connects up to 250 field devices
Wireless HART gateway connects up to 250 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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