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Remote monitoring, diagnosis and configuration

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article image The new Fieldgate FXA 520.

DEVELOPED specifically to work with existing web browser technology, the new Fieldgate FXA 520 gateway from Endress+Hauser is designed for remote process measurement monitoring, diagnosis and configuration of HART-compatible sensors and actuators.

Suitable for continuous monitoring of up to 30 measuring points, using either a multiplexer or HART multidrop fieldbus, the new gateway offers easy integration with existing standard Internet protocols and technology to make all measured values available to authorised recipients anywhere in the world.

It utilises the standard TCP/IP transport protocols and offers a choice of Ethernet, GSM mobile or ISDN/analogue telephone line as the physical mode of transmission.

An intrinsically safe version [EEx ia] IIC is available and is the first gateway using the HART protocol that can publish measured values from hazardous areas on the Internet.

Powered by either an 85-253V ac or 20-60V dc power supply, the gateway features 2-channel analogue (4-20mA) HART inputs with galvanic isolation and an RS485 interface for the HART multiplexer offering significant reductions in connection costs per measured point.

All conventional communication interfaces are supported - analogue modem, ISDN modem, GSM, and Ethernet - and measuring instruments can connected in four ways; analogue (4-20mA) HART, point-to-point (one device per channel), HART multidrop (15 devices per channel), or -multiplexer (up to 15 devices per multiplexer with a maximum of two multiplexers).

The Fieldgate FXA 520 only requires existing Internet software for installing and commissioning its remote monitoring functions. In operating mode, it displays the HART universal commands on an HTML page which, in turn, is displayed on any Internet-capable PC or laptop.

The HART functionality produces all the important information available in the device including process variables, instrument status, tag name, serial number etc, and also enables remote troubleshooting at the deepest possible level.

According to the manufacturer, as well as savings on software, the new device also offers user benefits relating to the improved efficient use of operating and maintenance personnel and the opportunities for predictive maintenance.

The unit's remote monitoring function makes it suitable for stock and storage level optimisation (in sites such as tank and/or silo farms), environmental protection (flood warnings and water quality analysis), and temperature/over-temp alarms.

Event-driven messages (eg, alarming emergency standby) can be sent via email or SMS.

The remote diagnostic and configuration functions mean that measurement device diagnosis and configuring/re-configuring functions can be performed from a central location, removing the need for personnel to visit the site.

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