Widening the ISA100.11a field
23 July 2013
Control Engineering Europe looks at two recent developments which could help to expand the use of field wireless systems based on the ISA100.11a standard.
A new ‘Wireless Anywhere’ business concept from Yokogawa Electric Corporation is based on the plant-wide use of ISA100.11a compliant wireless communication technologies for both monitoring and control applications. Yokogawa says it will ‘aggressively promote’ this concept to widen the use of ISA100.11a-compliant products and related services.
The ISA100.11a standard ensures high reliability, application flexibility, network expandability, and compatibility with a variety of wired communication standards such as Foundation fieldbus, HART, and Profibus.
ISA100.11a full functional field wireless network systems and devices make use of dual redundant technologies that enable a high level of reliability, and allow massive scalability and long-range communications. It can support connections of up to 500 field wireless devices. The data update time is five seconds when the system consists of a host system and 500 field wireless devices, and one second with a host system and 200 field wireless devices. The field wireless devices are proven to be able to communicate over distances up to 10 km.
The Wireless Anywhere concept follows up on the company’s existing Grow concept and will see the company developing modularised wireless components that incorporate the various technologies in its field wireless devices in a bid to make it easier for vendors to implement the ISA100.11a technology in new sensor products and accelerate time to market. It is hoped that the first new field wireless devices will come to market by the end of the year.
Yokogawa will also work with other members of the ISA100 Wireless Compliance Institute (ISA100WCI) to increase the number of WCI member companies and promote acceptance of the ISA100.11a standard. To make a wider range of ISA100.11a-compliant products available to the market, Yokogawa may also supply modularised components to other vendors.
Over the air device provisioning
The introduction of OneWireless 210, by Honeywell, is said to make wireless technology easier and less costly to deploy on large capital projects and monitoring-only applications.
The OneWireless network is a multi-application, multi-standard wireless network designed to extend process control network into the field. It can be tailored to offer the wireless coverage needed for industrial applications – from a simple wireless field instrument network to a completely integrated plant-wide multi-application wireless network.
New features in release 210 include over-the-air field device provisioning and a Gateway General Client Interface (GCI) made possible by the ISA100 standard; and native integration of OneWireless field networks into Honeywell’s Experion Process Knowledge System (PKS).
“Wireless technology is transforming the industrial landscape and we are trying to make it easier for end users to deploy and use,” said Ray Rogowski, global marketing director, Wireless, Honeywell Process Solutions. “With OneWireless Release 210, users can benefit from the flexibility and scalability offered by the ISA100 standard while maintaining high performance and reliability.”
With the over-the-air provisioning feature, field devices can be configured and commissioned without having to invest in handheld devices or needing to perform provisioning locally at the device. The result is faster and less costly deployment and improved worker safety, says the company.
The GCI feature, enabled by the ISA100 standard, allows operations to continue using legacy protocols and proprietary applications while wirelessly expanding those applications throughout the plant. The GCI also allows third-party client applications to communicate natively using proprietary or common field protocols with wireless field instruments over the ISA100 network. Enabling operations to continue using existing applications or protocols eliminates the need to reinvest in additional equipment and new client applications, re-train maintenance and operations personnel, and to provide consistency across the plant.
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