Today, either system is … One is the Programmed Logic Controller, otherwise commonly referred to as PLC, and the other is the DCS, or the Distributed Control System. I think PLCs are parts of a either DCS or SCADA system, so that the question should be DCS Vs. SCADA rather than DCS Vs. PLC. PLC-SCADA solutions tend to be less comprehensive than DCS solutions and are therefore leaner. 1. Difference between PLC & DCS:- To perform advanced regulative management on a plant-wide scale, DCSs contain the integral infrastructure.Slower processes usually need coordination across varied production units. For the most part, the PLC/DCS split still follows this historical pattern. PLC hanya akan serupa dengan DCS ketika memiliki HMI atau SCADA (supervisory control and data acquisisition). A DCS or distributed control system is similar to a PLC in that it has rugged computer controllers however the DCS contains multiple autonomous controllers that are distributed throughout a system, also used for automating processes. Decision : PLC or DCS Vivek Koshti 2. The strength of a DCS lies in a single database setup with minimal complexity and low risk of data redundancy. A distinct plant is handled by each controller. Difference Between PLC & DCS. PLCs still are used to control individual machines, while a DCS can control a larger number of machines or processes within a factory or plant. The PLC (Programmable Logic Controller) is … Programmable Logic Control (PLC) Developed initially out of Automotive Industry Distributed Control System (DCS) Employed in the Chemical Industry DCS and PLC systems are merging into one device:DCS and PLC systems are merging into one device: Programmable Electronic System (PES) Our focus is on PLCs We will talk more about this shortly The idea of using a PLC-based system rather than a DCS has become a philosophical and technical debate in the industry. DCSs have been the primary solution for process automation but now many PLC vendors are arguing that a single integrated architecture based on PLCs and/or PACs is the best approach to total plant automation. Difference between PLC & DCS: (PLC vs. DCS) To differentiate between PLC & DCS, there are five key factors to consider: They are: 1) Response Time: PLCs are fast, which make the PLC an ideal controller for real-time actions such as a safety shutdown or firing control. The PLC is linked to this controller. Selecting the technology and the right supplier can help your company : • To respond quickly to changing market conditions in a way that creates a sustainable competitive advantages. In a nutshell, a PLC or programmable logic controller is a ruggedized computer used for automating processes. The Programmed Logic Control system. As the previous writer said, DCS stresses on processing (PID) control variables, while SCADA stresses on supervisory (watching). Meanwhile, a DCS was the predominant choice for process control in applications such as oil and gas and chemical plants. PLC stands for Programmable Logic Controller which can handle the binary input and output of the logic statement which are stored in its memory.its a digitally operating system which are logic stored in its memory by programming system. PLC-SCADA systems are applied across many industries and provide clients with tailor-made solutions. 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