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Entries tagged with: SIS

What Managers Need To Know About Functional Safety

What Managers Need To Know About Functional Safety

If you’re a manager in the process industries then you should be familiar with the concept of Functional Safety and the need to have well defined processes and procedures in place.  If not, then how else will you be able to ensure that your Safety Instrumented System and plant…

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Why Run-to-Fail Is Not A Good Maintenance Strategy For SIS

Why Run-to-Fail Is Not A Good Maintenance Strategy For SIS

Why Sharing Components Between SIS & BPCS Is Not A Good Idea

Why Sharing Components Between SIS & BPCS Is Not A Good Idea

This is a topic which comes up time and again, especially when reviewing legacy systems.  Although IEC61511 doesn’t preclude the use of shared devices, it does however provide guidance under Clause 11 of what the constraints are.  Even though the Safety Instrumented System (SIS) and Basic Process Control System (BPCS)…

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