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 Communication Failure Step by Step Diagnosis

Table of ContentsWhat Is a PROFIBUS Communication Failure?Common PROFIBUS Communication Failure SymptomsPROFIBUS Communication Failure vs PROFIBUS Slave FailureCommon Causes of PROFIBUS Communication ErrorsHow to Troubleshoot PROFIBUS Communication FailureStep 1 Identify the PROFIBUS Failure PatternStep 2 Check PLC and PROFIBUS Master & Slave DiagnosticsStep 3...
Instrumentation Calculators

Measurement Uncertainty Calculator: Calculate Combined and Expanded Uncertainty Using GUM

Measurement Uncertainty Calculator - GUM Method #muc-wrap, #muc-wrap * { box-sizing: border-box !important; } #muc-outer { background: #eef2f8 !important; background-image: linear-gradient(rgba(15,23,42,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,42,0.045)...
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PLC

What are the FIFO and LIFO Sequences in PLC?

Table of ContentsWhat is Sequential Logic?What is the FIFO Sequence in PLC? Inputs, processing  and...
Pressure Measurement

In-Depth Guide to Pressure Measuring Instruments and Calibration

Involve yourself in the field of pressure measurement!  Examine the fundamental concepts of devices like...
Fire & Gas

Gas Detectors Practical Problems and Troubleshooting

Table of ContentsWhat is a Gas Detector?What are the kinds of gas detectors?State the...
Instrumentation Calculators

RTD Temperature Coefficient Calculation

Table of ContentsWhat is the coefficient factor of RTD?How is RTD coefficient calculated?RTD Formula...
Instrumentation Tools

Your Instrumentation Tools Resource

Welcome to your one-stop resource for essential instrumentation tools. This toolkit simplifies your instrumentation...
Communication

Difference between RS 232 & RS 485 Communication Protocol

Table of ContentsWhat is Serial Communication? What is RS-232 Communication Protocol? Features of RS-232 Communication ProtocolDisadvantages...
Valves

What is a Spool Valve? Configuration, Construction & application

Table of ContentsWhat is the spool valve?Various configurations of Spool valvesConstruction of Spool ValveTypical...
Instrumentation Questions

Mastering the Instrument Calibration Interview: Essential Questions and Answers

Table of ContentsWhat is Calibration?Why is Calibration important for Measuring Instruments?What is adjustment, and...
DIY Projects

Interfacing Potentiometer and LCD with Arduino

Table of ContentsStatement of the problemSchematic of interfacing potentiometer and LCD with ArduinoConnection diagram...
PLC

How To Write PLC Program In Keyence PLC Software?

Table of ContentsHow to write PLC Program in Keyence PLC Software? Statement of the ProblemFull...
Flow Measurement

Mastering Thermal Mass Flow Controller Troubleshooting: A Comprehensive Guide

Table of ContentsSymptom 1: Inaccurate Flow MeasurementSymptom 2: Zero Flow ReadingSymptom 3: Fluctuating Flow...
Interview Questions

Mastering DeviceNet Industrial network protocol: Top Interview Questions and Answers – Part 1

Table of ContentsWhat is DeviceNet?Who Pioneered the Development of DeviceNet?What is are DeviceNet system's...
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Latest articles

Communication

PROFIBUS Communication Failure Step by Step Diagnosis

Table of ContentsWhat Is a PROFIBUS Communication Failure?Common PROFIBUS Communication Failure SymptomsPROFIBUS Communication Failure...
Instrumentation Calculators

Measurement Uncertainty Calculator: Calculate Combined and Expanded Uncertainty Using GUM

Measurement Uncertainty Calculator - GUM Method #muc-wrap, #muc-wrap * { box-sizing: border-box !important;...
SIS/ESD

Shutdown Philosophy: Engineering Documentation for Process Safety and Emergency Shutdown Systems

Table of ContentsWhat is Shutdown Philosophy and Why is it Important? What Is a Shutdown...
Procedures

Hydraulic System Pressure Switch Troubleshooting: Step by Step Safe Procedure

Table of ContentsWhat Is a Hydraulic Pressure Switch and How Does It Work?Hydraulic Pressure...