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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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Engineering

Understanding Rangeability vs Turndown Ratio in Control Valve Sizing

Table of ContentsWhy This Distinction Matters for Instrumentation EngineersDefinitions: Rangeability vs Turndown Ratio in...
Instrumentation Calculators

Pressure Unit Converter – ISO and NIST Compliant Professional Calculator for Engineers

Instrumentation Questions

Troubleshooting Analog Output Signals in PLC Loops – Advanced Scenario-Based Quiz for Process Industries

Why Mastering PLC AO Signal Troubleshooting Matters in Process Plants Learn how to fix PLC...
Instrumentation

Edge AI Based Predictive Instrumentation Calibration and Health Monitoring for Process Plants

Table of ContentsWhy Edge AI Based Predictive Calibration Is the Latest Trend in Instrumentation...
Communication

Duplicate Modbus Address in Temperature Multiplexers Causes Plant Shutdown – Real Incident & Root Cause

Table of ContentsIncident Summary: 36 Temperature Tags Dropped to Zero and Alarm FloodingTimeline &...
Instrumentation Calculators

MIMO Decoupling Matrix Designer for Multivariable Process Control

MIMO Decoupling Matrix Designer /* =========================== DECORATED MIMO CALCULATOR WordPress Responsive...
Instrumentation

Live Signal Verification 4 to 20 mA Loop Standard Operating Procedure (SOP)

Table of ContentsPurpose: Live Signal Verification for 4-20 mA LoopsScope: Systems, Transmitters and ExclusionsSafety...
Instrumentation Questions

Advanced SIS Troubleshooting Quiz for Process Industries (25 MCQs with Answers)

SIS Troubleshooting Quiz Questions and Answers This quiz is for experienced safety, instrumentation, and SIS...
PLC

PLC Alarm and Trip Documentation Procedure – EPC PLC Automation Engineer Guide

Table of ContentsPLC Alarm and Trip Documentation Purpose and Objectives of the ProcedureScope and Explicit...
PLC

Resolution in PLCs – The Complete Guide for Automation & Instrumentation Engineers

Table of ContentsWhy Resolution in PLCs Matters in Industrial AutomationWhat Is Resolution in PLCs?...
Instrumentation Calculators

Valve Actuator Sizing Calculator – Complete Engineering Guide for Torque, Safety Factor & Gear Ratio Selection

Valve Actuator...
Engineering Standards

IEC 61511 Safety Bypass And Override in Instrumentation and Control System Maintenance

Table of ContentsIEC 61511 Safety Bypass and OverrideUnderstanding Safety Bypass And Override In A...
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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...