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Hybrid applications of IEC61511 – Laurie Blackmore
Implemenation location:
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Asset protection functions are often more numerous than safety protection functions
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Is it correct to increase the size and complexity of the SIS by including these asset
functions?
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IEC61511 says “may be applied in non-safety applications such as asset protection”
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Is this referring only to the methodology? There is no specific detail about system
location
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Proposal is to locate asset-only functions (and “housekeeping” functions) in a separate
system (PCS, PSD etc). This keeps the SIS for safety and there is no confusion
regarding where IEC61511 applies.
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Asset Implementation Issues