Controllers head for polyethylene plant in Austria
An
Invensys product story
Edited by the Engineeringtalk editorial team
Mar 9, 2006
Contract to supply triple modular redundant controllers for safety instrumented system applications on E200 million linear low density polyethylene plant in Austria.
Invensys Systems Austria has won its first ever contract from Borealis, a manufacturer of polyethylene and polypropylene.
Under the contract, Invensys is to supply its Triconex-brand TMR (triple modular redundant) Tricon controllers for safety instrumented system applications on the PE4, a E200 million linear low density polyethylene (LLDPE) plant being built at Schwechat in Austria.
LLDPE is used to manufacture plastic film products, such as packaging materials.
The Tricon is based on a TMR architecture that uses three isolated, parallel control systems and diagnostics integrated into one system.
This uses two-out-of-three voting to provide high integrity, error free, uninterrupted operation with no single point of failure.
This is important at Schwechat, where high system availability is an issue.
Tricon also has to communicate with the new plant's distributed control system via Modbus, with the capability to transfer event date time stamps.
Setting up applications at Schwechat is simplified with Tricon because the TMR operates as a single control system from the user's point of view.
The extensive diagnostics are inherent and transparent to the programmer.
As a result, the LLDPE process can operate safely and in a stable fashion without interruption.
This increases feedstock use, while protecting people and capital investment.
"Borealis was quite satisfied with the technical advantages that Tricon had to offer", said Claudius Ambrosch, Managing Director, Invensys Process Systems in Austria and Eastern Europe.
"We were also able to meet and even exceed the company's demanding total cost of ownership expectations".
"Our success was also based on an excellent co-operation of a multinational team within Borealis, its engineering contractors and Invensys".
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