HomeAuthorsPosts by Sundareswaran Iyalunaidu

Sundareswaran Iyalunaidu

With over 24 years of dedicated experience, I am a seasoned professional specializing in the commissioning, maintenance, and installation of Electrical, Instrumentation and Control systems. My expertise extends across a spectrum of industries, including Power stations, Oil and Gas, Aluminium, Utilities, Steel and Continuous process industries. Tweet me @sundareshinfohe
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Instrumentation Calculators

Advanced Instrument Air Compressor Interlock Logic and Control Quiz for Automation and Instrumentation Professionals

Instrument Air Compressor Interlock Logic Quiz Introduction Instrument air compressors are critical utility equipment controlled through PLC based sequencing, pressure instrumentation, permissives, alarms, trips and automatic standby selection. For automation and instrumentation professionals, understanding this logic is essential for DCS configuration, PLC programming, control panel...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog Input LoopCommon Symptoms of Galvanic Isolator ProblemsStep by Step Galvanic Isolator Troubleshooting ProcedureIndustrial Troubleshooting Case Study: Incorrect DCS Pressure ReadingSafety Precautions for Galvanic Isolator TroubleshootingGalvanic Isolator Selection and Maintenance Best...
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Control Valve

What Are the Most Common Failure Modes of Control Valves?

Table of ContentsIntroduction: Why Are Control Valves Critical in Industrial Process Control?Why Is Control...
Instrumentation Questions

Instrument Loop Diagram Preparation Quiz for EPC Engineering

Test Your Instrument Loop Diagram Knowledge with Real EPC Engineering Scenarios Challenge your expertise with...
Instrumentation Calculators

Intrinsic Safety Entity Parameter Calculator for Reliable Hazardous Area Loop Design

Intrinsic Safety Entity Parameter Calculator | AutomationForum.co :root{ --navy:#0f2a4a; ...
Communication

HART Communicator Unable to Detect Instrument: Complete Troubleshooting Guide (No Device Found Error)

Table of ContentsWhy Is My HART Communicator Unable to Detect the Instrument?What Does "No...
SIS/ESD

Process Safety vs Functional Safety: Key Differences, SIS, SIF, SIL & IEC 61511 Guide

Table of ContentsIntroduction to Process Safety vs Functional SafetyWhy Many Engineers Confuse Process Safety...
Cybersecurity

Top Cybersecurity Threat Identification Methods Every Security Professional Should Know

Table of ContentsUnderstanding Cybersecurity Threat IdentificationWhat is Cybersecurity Threat Identification?Cybersecurity Threat Identification LifecycleTop Cybersecurity...
Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

Table of ContentsInstrument Range Calculator for Pressure, Flow, Level & Temperature TransmittersThe Importance of...
Communication

Profibus PA Communication Problems: Causes, Symptoms and Troubleshooting Guide

Table of ContentsOverview of Profibus PA Communication Challenges What is Profibus PA Communication?Definition of Profibus...
Engineering

FAT vs SAT vs SIT: Three Critical Tests That Determine Whether Your Plant Is Truly Ready for Startup

Table of ContentsIntroductionPurpose of Factory Acceptance TestingFactory Acceptance Test ObjectivesFactory Acceptance Test ObjectivesPLC FAT...
Instrumentation Questions

Advanced DCS Documentation Quiz for Process Industries with Answers and Explanations

What is DCS Documentation and Why is it Critical in Process Industries? In the process...
PLC

PLC Troubleshooting Remote IO Rack Communication Failure Complete Troubleshooting Guide for Industrial Automation Engineers

Table of ContentsIntroduction to PLC Remote IO Rack Communication FailureWhat is PLC Remote IO...
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Instrumentation Calculators

Advanced Instrument Air Compressor Interlock Logic and Control Quiz for Automation and Instrumentation Professionals

Instrument Air Compressor Interlock Logic Quiz Introduction Instrument air compressors are critical utility equipment controlled...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog...
Instrumentation Calculators

Pressure Transmitter Overrange Protection Calculator: Calculate Pressure Surge and Overpressure Risk

Table of ContentsWhat Is Pressure Transmitter Overrange Protection?Pressure Transmitter Overrange Protection Calculator ParametersHow to...
Instrumentation Questions

Advanced Instrument Logic Diagram Quiz for Process Control Systems in Process Industries

Instrument Logic Diagram Quiz Introduction An Instrument Logic Diagram displays the interaction of process conditions,...