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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Communication

PROFIBUS vs PROFINET: Complete Industrial Network Comparison

Table of ContentsPROFIBUS vs PROFINET Explained for Industrial AutomationWhy PROFIBUS and PROFINET Still Matter in Real PlantsPROFIBUS Explained: Protocol, Types and Industrial UsesWhat is PROFIBUS DP?What is PROFIBUS PA?Why Engineers Still Trust PROFIBUSPROFINET Explained: Ethernet Based Industrial CommunicationWhy PROFINET Is Used in Modern AutomationWhat...
Commissioning

Loop Checking Field vs Control Room Reading Mismatch Explained

Table of ContentsIntroduction to Field vs Control Room Reading MismatchWhat Is Loop Checking in InstrumentationTypical Loop Checking WorkflowIndustrial Example of Flare Flow Meter Reading MismatchReal Physics Behind Loop Current DeviationMost Common Causes of Field vs DCS Reading MismatchStep by Step Troubleshooting Workflow:  Field vs...
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Instrumentation Questions

PLC Programming Basics Quiz for Automation Engineers – Process Industries

Why Automation Engineers in Process Industries Should Master PLC Programming Basics This short, advanced quiz...
PLC

PLC Data Types Every Automation Engineer Must Know to Avoid Costly Programming Errors

Table of ContentsWhy PLC Data Types Matter in Real-World AutomationCommon PLC Programming Problems Caused...
SAT Activities

Control Valve Site Acceptance Test (SAT) Procedure – Step-by-Step Field Guide

Table of ContentsWhy a Thorough Control Valve  SAT MattersSAT Purpose and ScopePreparatory Activities -...
Instrumentation Calculators

Advanced Venturi Tube Flow Calculator – Formula, Working & Applications

Advanced Venturi...
Instrumentation Questions

Control Valve Hunting Troubleshooting – Advanced MCQ Quiz

What Is Control Valve Hunting? Control valve hunting is a common and expensive problem in...
Control Valve

ESDV vs EBDV – Fail Close vs Fail Open | Emergency Shutdown Valve vs Emergency Blowdown Valve

Table of ContentsEmergency Valves in Process Safety SystemsWhat is an ESDV (Emergency Shutdown Valve)?What...
PLC

PLC Permissive Logic Troubleshooting Procedure for Instrumentation Engineers

Table of ContentsWhy PLC Permissive Logic is Critical in Process PlantsWhat is PLC Permissive...
Engineering

JB Grouping in Industrial Automation and Instrumentation – Complete Practical Guide for EPC, Site and Commissioning Engineers

Table of ContentsJB Grouping in Process Industry Instrumentation SystemsWhat Is JB Grouping in Instrumentation...
Instrumentation Calculators

PLC Raw Count Calculator: Comparison with PLC Internal Scaling Blocks, Real-World Use Cases and Practical Benefits

Advanced PLC Raw Count Calculator @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&display=swap'); :root{ --brand-500: #0b3c5d; --brand-600: #083047; --muted:...
Instrumentation Questions

Gas Turbine Start Interlock & Trip Test Procedure – Advanced Quiz

Why Gas Turbine Startup Interlocks and Trips are Critical Starting up a gas turbine is...
Instrumentation

Beyond Zero: Understanding the Dead Zero Problem in Industrial Analog Signals

Table of ContentsAnalog Signals in Industrial Process ControlUnderstanding Analog Signals in Process InstrumentationCommon Process...
Engineering

Hybrid Level Measurement Selection Procedure for EPC Instrumentation Engineers

Table of ContentsHybrid Level Measurement in EPC ProjectsWhat Is Hybrid Level Measurement in Instrumentation...
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Communication

PROFIBUS vs PROFINET: Complete Industrial Network Comparison

Table of ContentsPROFIBUS vs PROFINET Explained for Industrial AutomationWhy PROFIBUS and PROFINET Still Matter...
Commissioning

Loop Checking Field vs Control Room Reading Mismatch Explained

Table of ContentsIntroduction to Field vs Control Room Reading MismatchWhat Is Loop Checking in...
Checklist

What Causes 80% of Instrument Failures in Industry? Top 10 Causes and Prevention Methods

Table of ContentsIntroduction on Instrument Failures Seen Most Frequently in Process. PlantsWhy Instrument Reliability...
Instrumentation Calculators

Impulse Line Freezing Risk and Heat Tracing Calculator for Instrumentation Engineers

Table of ContentsIntroduction to Impulse Line Freezing Risk and Heat TracingImpulse Line Freezing Risk...