IDA elects new board, announces technology developments

Seligenstadt, Germany - Schneider Electric's increasing visibility in the IDA organisation (Interface for Distributed Automation) became apparent at the recent membership meeting hosted at Schneider's German headquarters. Two new Schneider representatives were elected to the board and an announcement was made that the group would include the Modbus TCP/IP protocol in its IDA stack.

07/29/2002



Modbus takes its place in the IDA stack, next to NDDS.

Seligenstadt, Germany - Schneider Electric's increasing visibility in the IDA organisation (Interface for Distributed Automation) became apparent at the recent membership meeting hosted at Schneider's German headquarters. Two new Schneider representatives were elected to the board and an announcement was made that the group would include the Modbus TCP/IP protocol in its IDA stack.

The governing board has been re-arranged, with Martin Jetter (Jetter AG) as the new chairman and Martin Müller (Phoenix Contact) as the treasurer. Volker Arlt from Lenze was elected to the board as well as two members from Schneider Electric to replace Dr. Schoop: Diego Areces (marketing) and Manfred Brill (chairman, technical steering committee).

Founded in 2000 by companies such as Lenze, Jetter, Phoenix Contact, Schneider Electric, SICK, and Turck, the IDA group is proposing standards for real time distributed automation based on Ethernet and Web technologies.

Modbus TCP/IP

Noting that Modbus TCP/IP is "already a quasi standard" for Ethernet communication in automation technology, the board said it would bring Modbus into the IDA stack and support the activities of the Modbus organisation.

 

"Strategically, two things are achieved by integrating Modbus into the IDA stack," he said. "First, Modbus meets the lowest IDA conformity level, and has the option for other upward compatible services based on the client/server and the publisher/subscriber model. Secondly, due to its lean protocol and the lean Schneider TCP/IP stack, IDA will be available for implementation in very low level devices."

Schneider Electric says it will have first prototypes of a Modbus chip with integrated TCP/IP early next year.

However, Modbus will not replace RTI's NDDS, which will continue to be used for real time applications. IDA is taking advantage of the fact that different protocols can co-exist in an Ethernet system. "There can be parallel communication paths," explains Mr. Buchwitz. "We can have NDDS running, which follows the publisher/subscriber model, a client/server application, and Modbus TCP/IP all running at the same time.

"We're not using Modbus for real time communications, we're using it because it's a widely accepted standard. We are, in effect, broadening the IDA concept; we're opening it up horizontally."

As an example of the parallel communications concept, intelligent devices such as PLCs or drives will communicate via NDDS while at the same time, on the same system, an I/O module communicates its status to another device or into the global database via Modbus. The IDA group envisions its networks as including both "smart" devices and basic sensor and actuator devices.


Control Engineering Daily News Desk
Michael Babb, editor, Control Engineering Europe
michael.babb@cahnerseurope.com





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Learn how to create value with re-use; gain productivity with lean automation and connectivity, and optimize panel design and construction.
Go deep: Automation tackles offshore oil challenges; Ethernet advice; Wireless robotics; Product exclusives; Digital edition exclusives
Lost in the gray scale? How to get effective HMIs; Best practices: Integrate old and new wireless systems; Smart software, networks; Service provider certifications
Fixing PID: Part 2: Tweaking controller strategy; Machine safety networks; Salary survey and career advice; Smart I/O architecture; Product exclusives
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Look at the basics of industrial wireless technologies, wireless concepts, wireless standards, and wireless best practices with Daniel E. Capano of Diversified Technical Services Inc.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.