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News Release from: Frost and Sullivan | Subject: Field device report
Edited by the Manufacturingtalk Editorial
Team on 24 October 2006
A revolution in process control
Intelligent field devices, digital industrial networks and advanced communication protocols have created a revolution in process control.
The advancements in valve automation has been driven by the need to reduce operator intervention and footprint on the field The ability to control and manage processes has increased to a great extent where field devices can execute process control loops
This article was originally published on Manufacturingtalk on 28 Apr 2004 at 8.00am (UK)
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In comparison to the analogue transmission system the field bus system involves reduced cabling and higher data transmission rates resulting in more information transmitted over the network.
A general challenge in the field bus market is the fact that field bus systems are selected based on the credentials of the company rather than performance of the communication system.
Major automation companies market field devices with field bus systems developed by them.
The lack of early standardisation has contributed to the develop individual field bus protocols by the major process automation companies.
Field device manufactures offer product ranges that are compatible with the major field bus protocols such as Foundation Field bus, Profibus, Devicenet and Modbus.
"Technologists prove that one of the core strengths of field bus technology is the interoperability of devices," says Frost and Sullivan Technical Insights Research Analyst Vishnu Sivadevan.
"This means that devices from various vendors can be integrated on the chosen field bus protocol".
"Only a limited range of field devices has demonstrated interoperability abilities, by way of passing stringent tests conducted for the purpose".
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