Discrete annunciators vs SCADA alarm systems Annunciator panel

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scada systems formerly considered preferred alternative discrete annunciators. software-based solution, endless ability analyze, present , process alarms, has potential replacing discrete alarms switches altogether.


however, software carries own reliability risks. reliance on software program trigger alarm assumes analog signal, programmer s logic code , hmi, plc or pc running programs, , interaction between of above, entirely trustworthy. exacerbated changing computer hardware & firmware platforms , need modify existing software. alternatively new annunciator panels utilizing long lasting , bright leds reduce cost , maintenance of panels. these new versions of traditional system still preferred on computer based systems in critical plants nuclear power generation, oil , gas.


in addition above, latest annunciator designs feature clever electronics give them high immunity noise, , can therefore reduce amount of false alarms due noise.







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