Distributed Control Systems (DCS) are dedicated systems used to control manufacturing processes that are continuous or batch-oriented, such as oil refining, petrochemicals, central station power generation, fertilizers, pharmaceuticals, food and beverage manufacturing, cement production, steelmaking, and papermaking. DCSs are connected to sensors and actuators and use set point control to control the flow of material through the plant.
The most common example is a set point control loop consisting of a pressure sensor, controller, and control valve. Pressure or flow measurements are transmitted to the controller, usually through the aid of a signal conditioning input/output (I/O) device. When the measured variable reaches a certain point, the controller instructs a valve or actuation device to open or close until the fluidic flow process reaches the desired set point.
Large oil refineries have many thousands of I/O points and employ very large DCSs. Processes are not limited to fluidic flow through pipes, however, and can also include things like paper machines and their associated quality controls (see quality control system QCS), variable speed drives and motor control centers, cement kilns, mining operations, ore processing facilities, and many others.
Innovic India Private Limited provides industrial Training on DCS as well as other automationtechnologies like PLC, SCADA, HMI, VFD and many more.
For Core Engineering jobs and 100% Job Oriented Industrial Training
Feel free to contact us on: +91-9555405045/+91-9811253572
Email: group.innovic2gmail.com
Web: www.innovicindia.com
In this session you will learn:
DCS Introduction
PLC
SCADA
General architecture of DCS
Process or application
Scan time
Input and Output requirement
Redundancy
RTU and LCU
PLC vs DCS
For more information, visit: https://www.mindsmapped.com/courses/industrial-automation/complete-training-on-industrial-automation-for-beginners/
This presentation is about the Distributed Control system in Power plants. DCS is a computerised control system for a process or plant usually with many control loops, in which autonomous controllers are distributed throughout the system, but there is no central operator supervisory control.
In this session you will learn:
DCS Introduction
PLC
SCADA
General architecture of DCS
Process or application
Scan time
Input and Output requirement
Redundancy
RTU and LCU
PLC vs DCS
For more information, visit: https://www.mindsmapped.com/courses/industrial-automation/complete-training-on-industrial-automation-for-beginners/
This presentation is about the Distributed Control system in Power plants. DCS is a computerised control system for a process or plant usually with many control loops, in which autonomous controllers are distributed throughout the system, but there is no central operator supervisory control.
Programmable logic controllers (PLCs) have been an integral part of factory automation and industrial process control for decades. PLCs control a wide array of applications from simple lighting functions to environmental systems to chemical processing plants. These systems perform many functions, providing a variety of analog and digital input and output interfaces; signal processing; data conversion; and various communication protocols. All of the PLC's components and functions are centered around the controller, which is programmed for a specific task.
The basic PLC module must be sufficiently flexible and configurable to meet the diverse needs of different factories and applications. Input stimuli (either analog or digital) are received from machines, sensors, or process events in the form of voltage or current. The PLC must accurately interpret and convert the stimulus for the CPU which, in turn, defines a set of instructions to the output systems that control actuators on the factory floor or in another industrial environment
Introduction of SCADA, Architecture of SCADA, Software and hardware architecture, Components of a SCADA system, Functions of SCADA, Alarms and events, alarm logging, comparision between scada and DCS
PowerPoint Presentation on Industrial Automation In which we discuss About PLCs, SCADA,HMI,VFD and various tools of Automation which is used in Industries.
Like Comment & Share
Programmable logic controllers (PLCs) have been an integral part of factory automation and industrial process control for decades. PLCs control a wide array of applications from simple lighting functions to environmental systems to chemical processing plants. These systems perform many functions, providing a variety of analog and digital input and output interfaces; signal processing; data conversion; and various communication protocols. All of the PLC's components and functions are centered around the controller, which is programmed for a specific task.
The basic PLC module must be sufficiently flexible and configurable to meet the diverse needs of different factories and applications. Input stimuli (either analog or digital) are received from machines, sensors, or process events in the form of voltage or current. The PLC must accurately interpret and convert the stimulus for the CPU which, in turn, defines a set of instructions to the output systems that control actuators on the factory floor or in another industrial environment
Introduction of SCADA, Architecture of SCADA, Software and hardware architecture, Components of a SCADA system, Functions of SCADA, Alarms and events, alarm logging, comparision between scada and DCS
PowerPoint Presentation on Industrial Automation In which we discuss About PLCs, SCADA,HMI,VFD and various tools of Automation which is used in Industries.
Like Comment & Share
What is a Distributed Control System? DCS has evolved from the original desc...mahdirasoulian2
What is a Distributed Control System? Over the years, the term DCS has evolved from the original description for the acronym as a “Distributed Control System” to the use of the term “Decentralized Control System” and they seem to be somewhat interchangeable nowadays.Regardless of which description is used, we are discussing a structure that, at the high-level view, is a system that coordinates and supervises an entire plant of many varying processes.
PLCs, traditionally, were used forsingle batch or high-speed control, have a relatively simple, low-cost design, and are the core of the system. Their design is flexible and generic but completely customizable.Processing time for tasks are typically very fast,operators usually interact and control the system using some sort of graphical display such as SCADA.
At the next level, you have the master controllers that supervise the individual processors as well as I/O modules.These controllers are also responsible for providing the data to the servers, which in turn, supply the data for the graphical interface.Industrial Ethernet is typically used for communication with the previous level. Fiber Optic may be used here when Ethernet cabling runs would be too long.
A DCS would be better used in an environment where there are large I/O counts with many continuous processes, a processor failure in one section of the plant is not a problem for production, or risk assessment has determined that an integrated package would be the best option.
Sofcon NSDC approved plc training in Noida and plc scada training in delhi. We are one of the leading industrial automation training provider all over india and 100% placement assistance. Sofcon training institute providing plc, scada, embedded, vlsi, ibms and autocad training provider.
BNF Technology Inc. is specialized in software solution for DCS HMI, Data Historian, Predictive Analytic, Real-time Performance Monitoring solution for Process Industry.
The aim of this project is to design and develop a system , which will help us to control the industrial processes sitting in a far of location.
Here a wireless concept of RF radio frequency (frequency Modulation technology) is used to control and monitor.
Introduction To Automation / Overview of Industrial AutomationRaj Nayak
Automation describes a wide range of technologies that reduce human intervention in processes, namely by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines.
In this ppt presentation, we shall learn about Automation types, process,es and development.
We Innovic India Pvt. Ltd. like to introduce ourselves as the company providing Hands on Practical Training cum Placement Program in Advanced Industrial & Process Automation. Innovic India Pvt. Ltd. has rich experience in providing automation solutions to applications like Cement, Power, Food Processing, Plastic, Pharmaceuticals Machinery, DG Automation, Load Management, Material Handling, Automobile, Ash Handling etc.
In order to cater to manufacturing industry's demand for skilled technical manpower in high-end technologies, Innovic established the Training Division that imparts advanced technology training, currently, in the areas of control systems, instrumentation mechanical systems, electrical systems and embedded systems. Innovic also provides customized training to corporate all over the world. Innovic's generic teaching methodology and focus on practical training has helped it gain strong foothold in Indian industry.
Our Major Clients:
Focus Energy Ltd.
Synergy Solution Pvt. Ltd.
Sunmark Project Pvt. Ltd.
Nikun Energy Control India Ltd.
Hindustan Power Projects
Tycon Automation Pvt.Ltd.
Aircon Engineering Pvt. Ltd.
S. J. Power Engineering Pvt. Ltd.
Cenlub Industries Ltd.
Lanco Infratech Ltd. etc...
Our Highlights:
Power Plant Training (Erection / Commissioning / Operation / Maintenance / Boiler / Turbine / CHP / AHP etc...)
Practical Automation training on various hardware and software components
Fully equipped Lab / Library facility
Life Time Job Support (We are providing life time job support to every candidate at free of cost).
Stipend / Salary (From the date of joining till the date of candidate get employed).
Best Training with 100% placement guarantee through trusted entity ''NaukriZone''.
Shortest time period of training with job orientation.
Summer / Winter training & Live Projects.
Personality Development classes specially for cracking interview.
Technical mock interviews.
Best trainers with industrial exposure.
Help in providing Hostel / PG accommodation.
Eligibility Criteria:
Degree / Diploma Engineers in Mechanical / Electronics & Communication / Electrical / Instrumentation.
Working Professionals.
Final Year students for Summer/Winter Training/Project.
Training in Innovic:
We impart Hands-on paid training on PLCs, SCADA, HMI, Motion Control (Drives & Motors), DCS, Industrial Networking, Process control and Instrumentation, Panel Designing etc. to Fresher engineers, working professionals, technicians. We have trained more than 600 working professionals at our fully equipped labs / facilities at Laxmi Nagar, New Delhi (Near Laxmi Nagar Metro Station), on following systems:
PLCs (Allen Bradley, Siemens, Schneider, Mitsubishi etc.)
SCADA/HMI (Wonderware- Intouch)
Variable Speed/Frequency Drives (Schneider)
HMI (Human Machine Interface)
Panel Designing /Auto CAD/Pro-E
Process Instrumentation, Panel Control Circuits, Industrial Networks.
Interview & HR Training.
Online PLC SCADA Automation Training Course is the ultimate course to make you a complete professional. Nearly 40% of the population comprises of youngsters who are employable and already employed. But a major share of them remains unemployed due to a lack of skills required to be in a specific work environment.
A nation’s success depends on the young population who are rightly skilled and employed. Hence, Skill Development And Technical Training remain the only path to build a successful career and nation. Innovic India makes your dream to be Skilled and Employed. Join us for a wonderful learning experience with Online PLC SCADA Automation Training Courses. This is your path to a career as a fresher in Industrial Automation and also to improve your existing skills to international standards. In this Online PLC SCADA Automation course, you will learn on-demand and future industrial automation courses that will make you job-ready. Also, Working Professionals with basic or minimal knowledge in Industrial automation can enroll as it will help them to get better opportunities, which would eventually lead to career growth. We also give support on live automation projects for corporates. We have a solution to all your problems simple or complex in Industrial Automation Technology.
WHAT YOU WILL LEARN IN THIS ONLINE PLC SCADA AUTOMATION TRAINING COURSES:
1. PLC - Programmable Logic
Controller
2. SCADA - Supervisory Control
and Data Acquisition
3. DCS - Distributed Control
System
4. HMI - Human Machine Interface
5. VFD - Variable Frequency Drive
6. AutoCAD
7. Panel Designing
8. Industrial Networking
9. Instrumentation
Feel Free to contact anytime in case of any query:
Innovic India Pvt. Ltd.
Contact No- +91- 9555405045 /
+91- 9811253572
Contact Person- Raj Nayak
Email- group.innovic@gmail.com
Web- www.innovicindia.com
Job Guaranteed Industrial Automation Training in Delhi NCRRaj Nayak
We Innovic India Pvt. Ltd. like to introduce ourselves as a company providing Hands on Practical Training cum Placement Programs in Advanced Industrial & Process Automation. Innovic India Pvt. Ltd. has rich experience in providing automation solutions to applications like Cement, Power, Food Processing, Plastic, Pharmaceuticals Machinery, DG Automation, Load Management, Material Handling, Automobile, Ash Handling, etc.
In order to cater to the manufacturing industry's demand for skilled technical manpower in high-end technologies, Innovic established the Training Division that imparts advanced technology training, currently, in the areas of control systems, instrumentation mechanical systems, electrical systems, and embedded systems. Innovic also provides customized training to corporate all over the world. Innovic's generic teaching methodology and focus on practical training have helped it gain a strong foothold in the Indian industry.
Our Major Clients:
Focus Energy Ltd.
Synergy Solution Pvt. Ltd.
Sunmark Project Pvt. Ltd.
Nikun Energy Control India Ltd.
Hindustan Power Projects
Tycon Automation Pvt.Ltd.
Aircon Engineering Pvt. Ltd.
S. J. Power Engineering Pvt. Ltd.
Cenlub Industries Ltd.
Lanco Infratech Ltd. etc...
Our Highlights:
Power Plant Training (Erection / Commissioning / Operation / Maintenance / Boiler / Turbine / CHP / AHP etc...)
Practical Automation training on various hardware and software components
Fully equipped Lab / Library facility
Life Time Job Support (We are providing lifetime job support to every candidate at free of cost).
Stipend / Salary (From the date of joining till the date of candidate gets employed).
Best Training with 100% placement guarantee through trusted entity ''NaukriZone''.
The shortest time period of training with job orientation.
Summer / Winter training & Live Projects.
Personality Development classes especially for cracking interviews.
Technical mock interviews.
Best trainers with industrial exposure.
Help in providing Hostel / PG accommodation.
Eligibility Criteria:
Degree / Diploma Engineers in Mechanical / Electronics & Communication / Electrical / Instrumentation.
BSC / MSC - Electronics
Working Professionals.
Final Year students for Summer/Winter Training/Project.
Training in Innovic:
We impart Hands-on paid training on PLCs, SCADA, HMI, Motion Control (Drives & Motors), DCS, Industrial Networking, Process control and Instrumentation, Panel Designing, etc. to Fresher engineers, working professionals, and technicians. We have trained more than 600 working professionals at our fully equipped labs/facilities at Laxmi Nagar, New Delhi (Near Laxmi Nagar Metro Station), on the following systems:
PLCs (Allen Bradley, Siemens, Schneider, Mitsubishi, etc.)
SCADA/HMI (Wonderware- Intouch)
Variable Speed/Frequency Drives (Schneider)
HMI (Human Machine Interface)
Panel Designing /Auto CAD/Pro-E
Process Instrumentation, Panel Control Circuits, Industrial Networks.
Interview & HR Training.
Industrial Automation Training With Job GuaranteeRaj Nayak
Innovic India Pvt. Ltd. provides Industrial Automation Training with 100% Job Guarantee. Innovic India Pvt. Ltd. is the best PLC SCADA Training Institute In Delhi NCR.
Do you want to understand the foundations of automation? Is it your job to make production more productive, efficient and secure? Are you asking yourself how to open up the potential of Industry?
We will provide you with the answers. Profit from our knowledge and experience – well-founded, practical, and explained fast and simply.
You will find the essentials of automation, sensors, RFID and network technology:
1)What basic knowledge you need
2)How to solve common applications
3)What product technologies will help you
Get ready for your future!
Contact@ +91-9555405045 / +91-9811253572
Visit: www.innovicindia.com
Do you want to know more about PLC and control systems then this lecture will be beneficial to you. This lecture/PPT contains all the basic views about PLC and Control Systems.
If you are more very curious to Know more about PLC, SCADA, DCS, HMI, VFD, Panel Designing, AutoCAD etc... then feel free to contact to me. My Contact no. Is. 9718474287.
We Innovic India Pvt. Ltd. like to introduce ourselves as the company providing Hands on Practical Training cum Placement Program in Advanced Industrial & Process Automation. Innovic India has rich experience in providing automation solutions to applications like Cement, Power, Food Processing, Plastic, Pharmaceuticals Machineries, DG Automation, Automobile, Ash Handling etc.
In order to cater to manufacturing industry's demand for skilled technical manpower in high-end technologies, Innovic India established the Training Division that imparts advanced technology training, currently, in the areas of control systems, instrumentation mechanical systems, electrical systems and embedded systems. Innovic also provides customized training to corporate all over the world. Innovic's generic teaching methodology and focus on practical training has helped it gain strong foothold in Indian industry.
Training @ Innovic
We impart Hands-on paid training on PLCs, SCADA, HMI, Motion Control (Drives & Motors), DCS, Industrial Networking, Process control, Instrumentation, P & ID, Embedded/VLSI, AutoCAD, Pro-E, PDMS etc. to Fresher’s, working professionals, technicians. We have trained more than 600 working professionals at our fully equipped labs / facilities on following systems:
• Industrial Automation
• Embedded / VLSI Design
• Piping Design Engineering
• Instrumentation Design Engineering
• Mechanical Design Engineering
• Interview & HR Training
Contact Info:
Phone: 011-65554557 / 09718474287
E-Mail:info@innovicindia.com
Web:www.innovicindia.com
Address: Innovic India Pvt. Ltd.
Sohna Complex, Naya Baans,
Sector- 15 Noida, U.P -201301.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...
Distributed Control System (DCS) Notes
1. DISTRIBUTED CONTROL SYSTEM (DCS)
1 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Distributed Control System is most popular which is specially designed with redundancy and
diagnostic capabilities to improve control reliability and performance. It gives greater flexibility to
control distributed discrete field devices and its operating stations.
Distributed Control System
To increase reliability, productivity and quality while minimizing the production cost, process
control industries must be driven by integrated controllers with high distributed control capability.
What is Distributed Control System
Distributed Control System is a specially designed control system used to control
complex, large and geographically distributed applications in industrial processes. In
this, controllers are distributed throughout the entire plant area.
These distributed controllers are connected to both field devices and operating PCs
through high speed communication networks as shown in figure.
2. DISTRIBUTED CONTROL SYSTEM (DCS)
2 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Discrete Field devices such as sensors and actuators are directly connected to input
and output controller modules through communication bus. These field devices or smart
instruments are capable of communicating with PLC’s or other controllers while
interacting with real world parameters like temperature, pressure, etc.
DCS Architecture
Controllers are distributed geographically in various section of control area and are
connected to operating and engineering stations which are used for data monitoring,
data logging, alarming and controlling purpose via another high speed communication
bus.
These communication protocols are of different types such as foundation filed bus,
HART, Profibus, Modbus, etc. DCS provides information to multiple displays for user
interface.
4 Basic Elements of Distributed Control System
Distributed Control System continuously interacts with the processes in process control
applications ones it gets instruction from the operator. It also facilitates to variable set
points and opening and closing of valves for manual control by the operator. Its human
machine interface (HMI), face plates and trend display gives the effective monitoring of
industrial processes.
3. DISTRIBUTED CONTROL SYSTEM (DCS)
3 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Elements of DCS
Engineering PC or controller
This controller is the supervisory controller over all the distributed processing
controllers. Control algorithms and configuration of various devices are executed in this
controller. Network communication between processing and engineering PC can be
implemented by simplex or redundant configurations.
Distributed controller or Local control unit
It can be placed near to field devices (sensors and actuators) or certain location where
these field devices are connected via communication link. It receives the instructions
from the engineering station like set point and other parameters and directly controls
field devices.
It can sense and control both analog and digital inputs / outputs by analog and digital
I/O modules. These modules are extendable according to the number of inputs and
outputs. It collects the information from discrete field devices and sends this information
to operating and engineering stations.
4. DISTRIBUTED CONTROL SYSTEM (DCS)
4 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
In above figure AC 700F and AC 800Fcontrollers acts as communication interface
between field devices and engineering station. Most of the cases these act as local
control for field instruments.
Operating station or HMI
It is used to monitor entire plant parameters graphically and to log the data in plant
database systems. Trend display of various process parameters provides the effective
display and easy monitoring.
These operating stations are of different types such as some operating stations (PC’s)
used to monitor only parameters, some for only trend display, some for data logging and
alarming requirements. These can also be configured to have control capabilities.
Communication media and protocol
Communication media consists of transmission cables to transmit the data such as
coaxial cables, copper wires, fiber optic cables and sometimes it might be
wireless. Communication protocols selected depends on the number of devices to be
connected to this network.
For example, RS232 supports only for 2 devices and Profibus for 126 devices or nodes.
Some of these protocols include Ethernet, DeviceNet, foundation filed bus, modbus,
CAN, etc.
In DCS, two or more communication protocols are used in between two or more areas
such as between field control devices and distributed controllers and other one between
distributed controllers and supervisory control stations such as operating and
engineering stations.
7 Important features of DCS
• To handle complex processes:
In factory automation structure, PLC-Programming Logic Controller is used to control and
monitor the process parameters at high speed requirements. However due to limitation
of number of I/O devices, PLC’s cannot handle complex structure.
5. DISTRIBUTED CONTROL SYSTEM (DCS)
5 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Handling Complex Processes
Hence DCS is preferred for complex control applications with more number of I/O’s with
dedicated controllers. These are used in manufacturing processes where designing of
multiple products are in multiple procedures such as batch process control.
6. DISTRIBUTED CONTROL SYSTEM (DCS)
6 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
System redundancy:
DCS facilitates system availability when needed by redundant feature at every level.
Resuming of the steady state operation after any outages, whether planned or
unplanned is somewhat better compared to other automation control devices.
Redundancy raises the system reliability by maintaining system operation continuously
even in some abnormalities while system is in operation.
System Redundancy
7. DISTRIBUTED CONTROL SYSTEM (DCS)
7 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Lot of Predefined function blocks:
Predefined Function block
DCS offers many algorithms, more standard application libraries, pre-tested and pre-
defined functions to deal with large complex systems. This makes programming to
control various applications being easy and consuming less time to program and
control.
Powerful programming languages:
It provides more number of programming languages like ladder, function block,
sequential, etc for creating the custom programming based on user interest.
More sophisticated HMI:
Similar to the SCADA system, DCS can also monitor and control through HMI’s (Human
Machine Interface) which provides sufficient data to the operator to charge over various
processes and it acts as heart of the system. But this type of industrial control
system covers large geographical areas whereas DCS covers confined area.
8. DISTRIBUTED CONTROL SYSTEM (DCS)
8 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Sophisticated HMI
DCS completely takes the entire process plant to control room as a PC window.
Trending, logging and graphical representation of the HMI’s give effective user
interface. Powerful alarming system of DCS helps operators to respond more quickly to
the plant conditions
Scalable platform:
Structure of DCS can be scalable based on the number I/O’s from small to large server
system by adding more number of clients and servers in communication system and
also by adding more I/O modules in distributed controllers.
System security:
Access to control various processes leads to plant safety. DCS design offers perfect
secured system to handle system functions for better factory automation control.
9. DISTRIBUTED CONTROL SYSTEM (DCS)
9 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
Security is also provided at different levels such as engineer level, entrepreneur level,
operator level, etc.
Application of Distributed Control System
DCS system can be implemented in a simple application like load management using
network of microcontrollers.
Application of DCS
Here the input is given from a keypad to a microcontroller, which communicates with the
other two microcontrollers. One of the microcontrollers is used to display the status of
the process as well as the loads, while the other microcontroller controls the relay
driver. The relay driver in turn drives the relay to operate the load.
Difference between SCADA and DCS (DCS vs SCADA):
Although both DCS and SCADA are monitoring and control mechanisms in industrial
installations, they have different goals. There exist some commonality between DCS and
SCADA in terms of hardware and its components, however, there are certain requirements by
10. DISTRIBUTED CONTROL SYSTEM (DCS)
10 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
the end applications that separates a robust and cost-effective DCS from the viable SCADA
system. Some of the differences between DCS and SCADA are listed below.
Difference Between DCS and SCADA
1. DCS is process oriented, whereas SCADA is data-gathering oriented. DCS
emphasizes more on control of the process and it also consists of supervisory control
level. And as a part of doing so, it presents the information to the operator. On the
other hand, SCADA concentrates more on acquisition process data and presenting it
to the operators and control centre.
2. In DCS, data acquisition and control modules or controllers are usually located within
a more confined area and the communication between various distributed control
units carried via a local area network. SCADA generally covers larger geographical
areas that use different communication systems which are generally less reliable than
a local area network.
3. DCS employs a closed loop control at process control station and at remote terminal
units. But in case of SCADA there is no such closed loop control.
4. DCS is process state driven where it scans the process in regular basis and displays
the results to the operator, even on demand. On the other hand, SCADA is event
driven where it does not scan the process sequentially, but it waits for an event that
cause process parameter to trigger certain actions. Hence, DCS does not keep a
database of process parameter values as it always in connection with its data source,
whereas SCADA maintains a database to log the parameter values which can be
further retrieved for operator display and this makes the SCADA to present the last
11. DISTRIBUTED CONTROL SYSTEM (DCS)
11 | P a g e + 9 1 - 9 5 5 5 4 0 5 0 4 5 w w w . i n n o v i c i n d i a . c o m
recorded values if the base station unable to get the new values from a remote
location.
5. In terms of applications, DCS is used for installations within a confined area, like a
single plant or factory and for a complex control processes. Some of the application
areas of DCS include chemical plants, power generating stations, pharmaceutical
manufacturing, oil and gas industries, etc. On the other hand SCADA is used for
much larger geographical locations such as water management systems, power
transmission and distribution control, transport applications and small manufacturing
and process industries.
In spite of these major differences, the modern DCS and SCADA systems come with common
standard facilities while dealing process plant automation. However, the choice between DCS
and SCADA depends on its client and end application requirement. But if the client choice
between these two, by gaining equal requirement from the process, DCS is the economical
choice as it help to reduce the cost and offer better control.
DCS Systems from Different Vendors:
Some of the available DCS systems include
ABB- Freelance 800F and 800 xA
Yokogawa- Centum CS 3000 and 1000
Honeywell-TDC 3000
Emerson- Delta V Digital Automation
Siemens- Simatic PCS 7
Allen- Bradley- NetLinx