Implementation of a safety instrumented system

Author

Shishiba, Ryotaro

Author_Institution

Yokogawa Electr. Corp., Tokyo

fYear

2007

fDate

17-20 Sept. 2007

Firstpage

2493

Lastpage

2496

Abstract

We have developed the ProSafe-RS safety system as a core safety instrumented systems of Yokogawa. This system complies with safety integrity level 3 (SIL3) of the IEC61508, and has been certified by a third-party certification body as conforming to the standard. In addition, it has high availability and nice features so that it provides comprehensive solutions to users who implement integration with process control systems. The main feature of the ProSafe-RS hardware is the application of dual microprocessor technology, not only to the processor module, but also to the I/O module. This paper describes the technologies to achieve high safety integrity level such as dual redundant technologies and diagnostics.

Keywords

IEC standards; industrial plants; occupational safety; process control; reliability; I/O module; IEC61508; ProSafe-RS safety system; dual microprocessor technology; dual redundant technology; process control systems; safety instrumented system; safety integrity; safety standard; Availability; Costs; Electrical safety; Event detection; Fault detection; Hardware; Instruments; Logic; Power supplies; Safety devices; Keywords; PFD; SIL; SIS; safety measure;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE, 2007 Annual Conference

Conference_Location

Takamatsu

Print_ISBN

978-4-907764-27-2

Electronic_ISBN

978-4-907764-27-2

Type

conf

DOI

10.1109/SICE.2007.4421409

Filename

4421409