Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Examples of SCADA and PLC Configuration Systems
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > PLC Tutorials > Examples of SCADA and PLC Configuration Systems

Examples of SCADA and PLC Configuration Systems

Last updated: March 4, 2021 3:32 pm
Editorial Staff
PLC Tutorials
No Comments
Share
4 Min Read
SHARE

Three levels of SCADA system architecture are recommended to support Industrial facilities. These vary in configuration to correspond to the size, criticality, and amount of mechanical and electrical equipment installed in the facility as noted.

Contents
SCADA and PLC ConfigurationSmall PLC SCADA SystemMedium PLC SCADA SystemPLC SCADA System with RedundancySCADA ConfigurationLarge PLC SCADA System

NOTE : The below shown figures are only example configurations which are used in previous decades. Here shown only for reference. Modern configurations are quite easy and simplified.

SCADA and PLC Configuration

SCADA and PLC Configuration

Small PLC SCADA System

The small system is recommended to support a remote data and/or telephone switch site.

Such a facility would generally include a single service transformer and a single standby diesel generator. Some equipment inside would consist of a small rectifier for a 24 VDC bus, telemetry systems, PLC, HMI, cooling units

Systems for these facilities may not achieve the reliability/availability criteria specified for larger facilities. The level of SCADA system redundancy should reflect the mechanical/electrical system redundancy.

See below figure for a example scada configuration.

SCADA Example

Medium PLC SCADA System

The medium system is recommended to support a main computer facility, which would include multiple service transformers and standby generators with paralleling switchgear, one or two large UPS systems, and multiple refrigeration machines with associated auxiliary equipment.

SCADA systems for this size facility should utilize redundant distributed control architecture. The level of PLC redundancy should be selected based on the design of the mechanical and electrical systems. Two options and suggested SCADA configurations are provided.

PLC SCADA System with Redundancy

The below figure presents a example SCADA configuration applicable to a facility with mechanical and electrical systems designed to provide redundancy through segregated systems.

In this case, PLCs controlling individual systems must have a reliability level adequate to maintain the required availability at the system they serve, but do not necessarily have to be redundant, as redundancy is provided through the N+X system approach. Failure of a single PLC will affect only the system it controls and the remaining systems continue to meet the mission-critical load.

SCADA Project

SCADA Configuration

The below Figure presents a example SCADA configuration for a similarly sized facility in which mechanical and electrical systems utilize redundant components in a manifold configuration. In this design, any combination of components can be selected to serve the load.

This provides greater flexibility than segregating components into redundant systems, but requires common control of all components, making the PLC a potential single point of failure. In this configuration, system-level PLCs must have redundancy adequate to meet the required availability of the system.

PLC Project

Large PLC SCADA System

A large system serving a multi-facility site consisting of several installations will require a central supervisory control room networked to distributed control within the individual buildings appropriate to the mission and reliability criteria of each facility.

A control room will typically be located in each central power plant that is required for such a facility and the system can also be accessed from other locations distributed along the network. Redundant and segregated pathways are recommended for the on-site communication network. See below figure for a example configuration.

SCADA and PLC Configuration

Reference : This material adapted from the “Department of the Army, TM 5-601, Supervisory Control and Data Acquisition (SCADA) Systems for Command, Control, Communications, Computer, Intelligence, Surveillance, and Reconnaissance (C4ISR) Facilities, 21 January 2006.”

If you liked this article, then please subscribe to our YouTube Channel for PLC and SCADA video tutorials.

You can also follow us on Facebook and Twitter to receive daily updates.

Read Next:

Features of SCADA

SCADA Interview Questions

PLC Program for Counter

Alarm Management System

Basics of Process Control

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

What are Trends in SCADA?
Control Algorithms in PLC Programming
Automate Batch Mixing with Repeated Cycles in Omron PLC
Compare Two Offline PLC Projects
How to use JUMP Instruction in PLC Ladder Logic?
Step by Step Guidelines to Download Free Robotics Software
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

PLC Program for Controlling Sequence of Conveyors with Interlock
Package System Architecture – Control & Instrumentation
PLC Analog Signals Wiring Techniques
Why is 24 Volts Commonly used in PLC Systems?
What are AI, AO, DI, and DO? – Definition, Examples, Purpose
DP Master System Configuration in PLC
PLC SCADA Engineers Interview Questions and Answers
PID Simulator Download

Keep Learning

Ccomparator in PLC Programming

Comparator in PLC Programming

How to Select a SCADA for New Project

How to Select a SCADA for New PLC Project?

PLC Program using One Shot Rising Instructions

One Shot Rising and One Shot Falling Instructions in PLC

SCADA Standards

SCADA for Substation Automation

Siemens PLC Write Protection

How to Protect Siemens PLC using Password?

PLC Programming for Weight-Based Packaging

PLC Programming for Weight-Based Packaging

Download a Ladder logic program to GE PLC

PLC Timer Programming Examples – TON, TOF, TP and TONR

Learn More

Custom CNC Machining Complete Guide

Custom CNC Machining – A Complete Guide You Cannot Miss

Cyber Security Multiple Choice Questions and Answers

Cyber Security Multiple Choice Questions and Answers

Which Tube has most Hydrostatic Pressure

Which Tube has most Hydrostatic Pressure?

7 Marketing Strategies for Engineering Companies

7 Marketing Strategies for Engineering Companies

Twisted Pair Cable Noise Supression

Why We use Shielded Cable and Twisted Pair Cables ?

two chemical streams are mixed together

Practical Process Control System Questions & Answers – 8

Examples of PLC Programming using Boolean Functions

Examples of PLC Programming using Boolean Functions

Pre-Startup Safety Review (PSSR)

Pre-Startup Safety Review (PSSR)

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?