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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Instrumentation Questions

Proximity Switch MCQ Challenge: Test Your Knowledge!

In this article, we'll provide proximity switch questions and answers, as well as details...
PLC

Comprehensive PLC Panel Installation and Commissioning Checklist (Downloadable)

Table of ContentsOverall System Configuration Checks:Visual Inspection Checks:Electrical Checks:Power Connection Checks:System Power Up (230V...
Instrumentation Calculators

Calibration Error Calculator – Formula, Worked Example & %FS Calculation

Table of ContentsWhat is a Calibration Error Calculator?Why Calibration Error Calculation is ImportantInputs Required...
PLC

Understanding Different types of Timer blocks used in a PLC ladder logic

Table of ContentsGraphical Representation of different Timer used in Siemens TIA PortalDifferent Timer Block...
Fire & Gas

What is Bump Testing? 

Table of ContentsMain Objective of the Bump TestImportance of Bump Testing:Important Definitions:Types of Bump...
Flow Measurement

Electromagnetic Flowmeter Troubleshooting: Identifying and Resolving Issues

Table of ContentsHow to check the flowtube of an electromagnetic flowmeter?Electromagnetic Flowmeter Troubleshooting GuideSymptom...
Industrial Automation

A Beginner’s Guide To Arduino

Introduction A computer-on-chip is a microcontroller. It is a microprocessor, memory, I/O port, and occasionally...
Flow Measurement

Coriolis Flow Meter Installation: Best Practices for Accuracy

For the purpose of determining coriolis flow rate, a Coriolis mass flow meter, which...
FAT Activities

Factory Acceptance Test (FAT) of a PLC Panel: A Step-by-Step Basic Guide

Table of ContentsWhat is a Factory Acceptance Test (FAT)?FAT Procedure for PLC panelDefine the...
Industrial Automation

How to properly ground an Instrumentation System to reduce noise?

Most instrumentation systems in process industries consist of analog signal measurement where noise is...
Valves

What are the factors that affect the performance of the Control Valve?

In every process industry, the performance of a control valve is an essential parameter. To...
Flow Measurement

Precision Control: The Science Behind Thermal Mass Flow Controllers

What is a Mass flow controller? In order to precisely control the flow rate of...
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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...
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...