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's Example Implementation of ANSI/ISA-84.00.01-2004 (IEC PDF

ISBN-10: 1556179804

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Bulk Checked: V. May R. Brow n Approved: W. Licensee=Fermilab All rights05/07/2014 reserved. 268E-3, and therefore meets SIL 2 Project # Rev ision # Revision RVSD CHKD APPD Date Project # YYYY Draw n: S. Bulk Checked: V. May R. Brow n Approved: W. Licensee=Fermilab All rights05/07/2014 reserved. 1), the cause and effect diagram (Table 11), and the P&I diagram (Figure 10)) were utilized to develop the application software requirements, as illustrated in the ladder diagrams (Figure 11). --``,`,``,``,`,````,``,,`,,,`,`-`-`,,`,,`,`,,`--- Ladder diagrams reflecting the functional requirements for each SIF are illustrated in Figure 11, Sheets 1 through 5 inclusive.

04-2005 Part 2 Transmitters were supplemented with out of range and improper output value diagnostics in the SIS and BPCS logic solvers. Transmitter failure rate data was based on the SIL claim limit supplied with either the IEC 61508 certification or IEC 61508 compliance data, and assumed that good installation practices were followed. Individual taps were provided for each sensor. Transmitters utilized are programmable (smart) devices with the following features: a) Diagnostics, remote access to calibration information, and on-board device description features providing an increased level of assurance that the corresponding device is in place and in working order.

3 Common Cause and Systematic Failures The subsequent clauses define the design provided to address common cause and systematic failure issues. 1 General Design techniques implemented to avoid common cause failures include separation, redundancy, diversity, and peer review. Techniques used to avoid systematic errors include peer review, use of design approaches with a good prior use track record, diversity, and comparison diagnostics. The design implementation of these techniques is discussed in the following clauses.

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Example Implementation of ANSI/ISA-84.00.01-2004 (IEC 61511 Mod)


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