Basic conceptibus「BPCs」
Basic Processus Imperium System: respondet initus signals ex processus, ratio-related apparatu, alia programmable systems, et / vel ratio-related apparatu operate quod requiritur, sed non praestare aliquem instrumental munera, sed non praestare quisque habet, et non facit quod ratio et non facit, quod non praestare quisque Fungi munera cum declaravit. (Excerpt: GB / T 21109.1-2007 (IEC 61511-1: MMIII, IDT) muneris salute salutis instrumented systems in processum industria - Part I: Framework Ratio 3.3.2)
Basic Processus Imperium System: responds ad input annuit ex processus mensuras et alia related apparatu, alia instrumenta, imperium systems, seu operators. Secundum processus imperium lege, algorithmus et modum, in output signum est generated ut animadverto in operationem processus imperium et ejus related apparatu. In Petrochemical plantis aut plantis, in basic processus imperium ratio plerumque utitur distributas imperium system (DCS). Basic processus imperium systems non praestare salutem Instremed munera Sil1, Sil2, Sil3. (Excerpt: GB / T 50770-2013 Code enim consilium Petrochemical Safety Instromments Systems 2.1.19)
「SIS」
Salus Instromatur ratio: an instrumented ratio ad effectum deducendi vel pluribus instrumento salus munera. SIS potest ex aliquo compositum ex sensorem, logicam solver et ultima elementum.
Instrumentum salutem munus; SIF habet specifica SIL ad consequi eget salus salus munera, quae potest esse et instrumentum salutem praesidio munus et instrumentum salutem imperium munus.
Salus integritas gradu; SIL ad specificare discretum levels (unus ex IV gradus) pro salute integritas requisitis instrumentation salus munera assignata instrumented systems. Sil4 est summum gradum salus integritas et sil1 est infimum.
(Excerpt: GB / T 21109.1-2007 (IEC 61511-1: MMIII, IDT) Eget salutem salutis instrumented systems pro processum industria pars I: Framework Ratio Systems ad processum industria pars I: Framework Ratio 3.2.72 / 3.2.71 / 3.2.74)
Salus Insomnes ratio: an instrumented ratio, quae implements vel salus instrumented munera. (Excerpt: GB / T 50770-2013 Code enim consilium Petrochemical Safety Instremented Systems 2.1.1);
Discrimen inter BPCs et Sis
Safety instrumented system (SIS) independent of the process control system BPCS (such as distributed control system DCS, etc.), production is normally dormant or static, once the production device or facility may lead to safety accidents, can be instantaneously accurate action, so that the production process safely stop running or automatically import a predetermined safety state, must have high reliability (that is, functional safety) and standardized maintenance Management, si salus instrumented ratio deficit, saepe ad gravi salutem accidentia. (Excerpt: Generalis Administration Salutis Supervision No. III (MMXIV) No. CXVI, glaciens opiniones de re publica administratione salutis vigilantia in confirmatione administratione de chemical salute instrumentis Systems)
De significatione sis libertatem ex BPCs: si normalis operatio de BPCs control loop occurrat sequenti requisitis, potest esse quod est independens tutela separata a salus instrumented system (sis sensorem, et in salute et ultima.
Differentia inter BPCs et SIS:
Aliud propositum munera: productio munus / salutem munus;
Diversis operating Americae: Real-vicis imperium / super-terminum tempus interlock;
Reliability diversas requisita: sis requirit altius reliability;
Diversity potestate modi, continua potestate ut pelagus / logica potestate ut pelagus imperium;
Alia modi usus et sustentacionem: sis est magis restrictius;
BPCs et Sis
Utrum BPCs et SIS potest participes components potest considerari et determinari a sequentibus tria facies:
Requirements et praescripta vexillum specifications, salus requisita, IPL methodologia, SIL aestimatione;
Economic Aestimatio (provisum est basic salus requisita occurrit), ut terror (ut humilis rationabiliter practicable) analysis;
Managers aut engineers sunt determinatae fundatur in usus et subiectiva voluntatem.
Aut via, minimam postulationem in occursum de requisitis legatos et signa requiritur.
Post tempus: Sep 09-2023