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Multi-protocol wireless adaptor

13th February 2014


Yokogawa has developed a multi-protocol wireless adaptor that enables wired field instruments or analytical sensors to be used as ISA100 Wireless devices, and will release models in May and July that support communications based on the HART and RS485 Modbus standards. To facilitate the introduction of field wireless systems in plants, Yokogawa plans to release additional models that will cover other standards.

Field wireless systems enable the field devices and the host-level monitoring, control, and other systems in a plant to communicate wirelessly with each other. They have numerous advantages such as allowing the placement of field instruments or analytical sensors in difficult-to-wire locations, eliminating the need for cables to connect devices, and costing less to install. In accordance with its 'Wireless Anywhere' concept, Yokogawa is seeking to promote the plant-wide use of field wireless systems by developing ISA100 Wireless devices such as this multi-protocol wireless adaptor.

When the multi-protocol wireless adaptor is mounted on a wired field instrument or analytical sensor, the instrument or sensor is able to function as an ISA100 Wireless device. It may be used with any type of wired field instrument or analytical sensor commonly used in plants, including those used to monitor temperature, pressure, liquid level, or vibration, or to detect gas, and is compatible with both Yokogawa devices and devices from other vendors. By giving customers a greater range of field instruments and analytical sensors to choose from, Yokogawa expects that this multi-protocol wireless adaptor will greatly facilitate the introduction of field wireless systems.

The first two models are intended for wired HART and RS485 Modbus communications, both of which are widely used in plants. Yokogawa plans to release models that are compliant with other wired field communications standards such as FOUNDATION fieldbus and PROFIBUS.

The battery in the multi-protocol wireless adaptor can also power the field instrument or analytical sensor, eliminating the need for wiring. As with other Yokogawa field wireless devices, the multi-protocol wireless adaptor uses a large-capacity lithium-ion battery, and this is able to power both the multi-protocol wireless adaptor and the field instrument or analytical sensor for a long time. An indicator on the host system shows the estimated remaining days of battery life.

An all-weather model type that is waterproof and dustproof and an explosion-protection type that can be used in the presence of inflammable gases are scheduled to be released.

Major target markets include industries such as oil and gas, LNG, refining, petrochemicals, chemicals, power, pulp and paper, pharmaceuticals, foods, and iron and steel.

For more information, visit www.yokogawa.com/eu







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