PLC Vs DCS

          Today,there is not much different between PLC and DCS operational and functional as what we have during 80's. These stuff almost the same and equal in term of capability and complexity of process capture and handling. However, the optional is there either to choose a PLC or DCS are depends on scope of project in term of cost, robustness of input or output (probably digital is prefer for PLC) and system maintenance (service/support after completing a project).

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