DIGITAL CONTROL SYSTEM
\dˈɪd͡ʒɪtə͡l kəntɹˈə͡ʊl sˈɪstəm], \dˈɪdʒɪtəl kəntɹˈəʊl sˈɪstəm], \d_ˈɪ_dʒ_ɪ_t_əl k_ə_n_t_ɹ_ˈəʊ_l s_ˈɪ_s_t_ə_m]\
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(DCS) A digital computer used for real-timecontrol of a dynamic system, usually in an industrialenvironment, possibly as part of a Supervisory Control andData Acquisition (SCADA) system.A DCS samples feedback from the system under control andmodifies the control signals in an attempt to achieve somedesired behaviour.Analysis of such digital-analogue feedback systems can involvemathematical methods such as difference equations, Laplacetransforms, z transfer functions, state space models andstate transition matrices.
By Denis Howe
Word of the day
tinctura quininae ammoniata
- A preparation made by dissolving quinin sulphate in alcohol [Br. Ph.].