Difference between SIS, PLC and BPCS Systems
Safety Integrity Level (SIL) is a measure of safety system performance – not a measure of process risk. The higher the level of risk, the greater the system performance required....
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S84 / IEC 61511 Standard for Safety Instrumented Systems
IEC 61511 is a technical standard which sets out practices in the engineering of systems that ensure the safety of an industrial process through the use of instrumentation. Such systems...
Safety Instrumented System Engineer Interview Questions
A SIS is engineered to perform “specific control functions” to failsafe or maintain safe operation of a process when unacceptable or dangerous conditions occur. Safety Instrumented Systems must be independent...