To understand the difference lets know what PLC and DCS are:- A programmable logic controller (PLC) is a specialized processor/ computer with all the hardware and software to do a specific automation task, say running a plant/factory. Hybrid - 5 Factors to consider; Who to Include in the Decision Process; Vendor Selection Criteria - 6 Key Considerations; Speaker. Supervisory control and data acquisition system is a software interface that offers plant operators ease of control and supervision over various equipment in the industry/plant. Differences between SCADA and DCS are: SCADA scans centrally data from PLC and RTU, where DCS gets its data from controllers (de-central) Architecture also differs, SCADA often has WAN connectivity between L2 and L1 where DCS is internally LAN based. SCADA may be called Human-Machine Interface (HMI) in Europe. Speakers 1 Name. SCADA is the acronym for Supervisory Control And Data Acquisition. The primary difference between a PLC (or Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition) is the fact that a PLC is hardware and SCADA is (generally) software, though some would argue that SCADA is a plant’s overall control system using hardware and software elements. While DCS and SCADA are functionally very similar, DCS is generally employed at large, continuous processing facilities. (L2 - L1) Many DCS today support both DCS as well as SCADA modus, such as Honeywell Experion PKS. SCADA, like DCS, is a computerized system that includes sensors, control units and displays. If you are evaluating which system is best for your monitoring project, it's important to know the similarities and differences between them. As its name implies, data acquisition and the electronic recording and reporting of system conditions play a strong role in SCADA. A DCS delivers data to operators, and at the same time, a SCADA concentrates on the acquisition of that data. Speaker Title Company. A DCS solution does not require operator intervention for its normal operation, but with the line between SCADA and DCS merging systems claiming to offer DCS may actually permit operator interaction via a SCADA system. A SCADA system and a DCS system have many things in common as they both are a computer system for gathering and analyzing real-time data, allowing for remote monitoring and control of networks.. In addition, it performs data acquisition also. Similar, but not the same. BY: SAYED QAISAR SHAHBS TELECOM,CCNA,CWNA REG# A1DE-109004 DATE: 01-08-12 2. DCS (Distributed Control System)INTRODUCTION Digital Control Systems(DCS) also known as Distributed Control System is the brain of the control system. SCADA systems are also more scalable and flexible, so they can be used to collect data from a single factory or a dozen without geographical restrictions. The terms SCADA, distributed control system (DCS), programmable logic controller (PLC), remote terminal unit (RTU) and smart instrument are very important when we’re talking about concept of a industrial telemetry system. This technical article shed light on terminology used in the field of SCADA and industrial automation. DCS system: The DCS is usually used in factories and located within a more confined area. It is generally, since the 1970s, digital, and normally consists of field instruments, connected via wiring to computer buses or electrical … Operations are almost always controlled onsite rather than remotely. SCADA-Supervisory Control and Data Acquisition System. Dcs vs scada 1. It uses a high-speed communications medium, such as local area network (LAN). It may entail a combination of display panels near the equipment and remote monitoring via the internet. DCS vs. PLC vs. SCADA vs. Sayed QAISAR SHAHBS TELECOM, CCNA, CWNA REG # A1DE-109004 DATE: 2... 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