Yokogawa releases its first ISA100.11a wireless devices

11 June 2010

Yokogawa Electric Corporation announces that it has developed the world's first field wireless devices based on the ISA100.11a industrial wireless communications standard, and will release them to the market in July 2010.

Yokogawa's new wireless ISA100 devices: gateway, pressure, and temperature transmitter
Yokogawa's new wireless ISA100 devices: gateway, pressure, and temperature transmitter

These wireless products include an EJX-L series differential pressure and pressure transmitter (photo, centre), a YTA series temperature transmitter (right), and an integrated field wireless gateway (left) which connects field wireless devices with a host system and provides a number of field wireless network setting and management functions in field sensor networks.

Yokogawa says it plans to provide a trial kit that will “allow customers to experience the advantages of Yokogawa wireless products.” Details will be announced later.

Yokogawa also says it “Will continue to develop various kinds of field wireless devices for both monitoring and control applications, and is also proposing the development of new field digital networks that integrate wireless and wired technologies.”

Development background

Approved in September 2009, Yokogawa engineers believe the ISA 100.11a standard presents the following advantages for use in industrial automation:

1. High reliability;
2. Suitable for a wide range of applications;
3. Improved flexibility and network expandability; and
4. High compatibility with existing wired systems.

Following approval by ISA and ANSI, this standard will be published and submitted for the review of the IECSC65C Subcommittee of the International Electrotechnical Commission (IEC).

The press statement says “These new field wireless devices based on the ISA 100.11a standard fully complement Yokogawa's measurement, control, and information solutions and are expected to make a significant contribution to the realisation of the company's VigilantPlant concept of the ideal plant.”

ISA100 product concept

1. Suitability for monitoring, diagnostics, and control

With bidirectional digital wireless networks based on the ISA100.11a standard, the production, device diagnostic, and parameter data transferred between a control system and field devices are securely encrypted. This wireless technology is ideal for status monitoring, device diagnostics, and control applications.

2. Multiple power sources

These wireless devices are designed to run on explosion-proof batteries that can easily be replaced in hazardous locations. Yokogawa also plans to develop easy-to-maintain solar batteries for use with these devices.

3. The development of new technology while safeguarding investment in existing assets.

Major target markets are said to be oil and gas, LNG, refining, petrochemicals, chemicals, iron and steel, pulp and paper, power, non-metal/cement, food and beverages, water treatment, and waste water. There are many possible applications in temperature, flow, and differential pressure/pressure measurement in plant processes.

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