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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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Instrumentation Questions

Safety PLC Basics in Process Industries: 25 Advanced MCQs on Functional Safety, SIL and SIS

Safety PLC Quiz Introduction Safety Programmable Logic Controllers play an important role in protecting personnel, equipment and industrial processes from hazardous operating conditions. In process industries, Safety PLCs form part of the Safety Instrumented System, executing Safety Instrumented Functions designed to reduce identified risks. Understanding...
PLC

Best AI Tools for PLC Programming: ChatGPT vs Claude vs PLC AI Agents

Table of ContentsWhat Is AI Based PLC Programming and How Does It Work?How AI Is Changing Industrial PLC ProgrammingTypes of AI Tools Available for PLC ProgrammingBest AI Tools for PLC ProgrammingAI Tools for PLC Programming Comparison: Features and CompatibilityAI Ladder Logic vs Structured Text...
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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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Instrumentation Questions

Safety PLC Basics in Process Industries: 25 Advanced MCQs on Functional Safety, SIL and SIS

Safety PLC Quiz Introduction Safety Programmable Logic Controllers play an important role in protecting personnel,...
PLC

Best AI Tools for PLC Programming: ChatGPT vs Claude vs PLC AI Agents

Table of ContentsWhat Is AI Based PLC Programming and How Does It Work?How AI...
PLC

PLC Analog Output Wiring Procedure: 4 to 20 mA and 0 to 10 V in Process Automation

Table of ContentsUnderstanding PLC Analog Output Wiring for 4 to 20 mA and 0...
Instrumentation Calculators

Thermocouple Extension Cable Selection: Types, Colour Codes, Insulation and Resistance Calculation

Table of ContentsWhat Is Thermocouple Extension Cable and Why Is Correct Selection Important?Thermocouple Extension...