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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Interview Questions

Modbus Interview Questions and Answers: Essential Knowledge

What is Modbus? In industrial automation, Modbus is a popular communication protocol.  It enables data exchange...
PLC

PLC Ladder Logic for Control of Two Interconnected tanks using Siemens TIA portal

In an industry two Interconnected tank control is used. The two tanks are Storage...
Process Control

How to choose the Proper Process Controller: A Comprehensive Guide

Industrial automation's foundation is made up of process controllers, which are essential for controlling...
Industrial Automation

How would you detect a small leakage in a gas pipeline?

Table of ContentsWhat are the methods of leakage detection after pipeline erection?What is the...
Instrumentation Questions

Proximity Switch MCQ-2

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

RTD Calculator: Converting Measured Resistance to Process Temperature

A Resistance Temperature Detector (RTD) is a sensor used to measure temperature by correlating...
Industrial Automation

Exploring Explosion-Proof: Safety in Hazardous Environment

Overview: Explosions represent an important risk to both employees and equipment in a variety of...
Instrumentation Calculators

RTD Calculator: Converting Process Temperature to measured Output Resistance

In various industries, accurate temperature measurement is vital for ensuring product quality, safety, and...
PLC

PLC Ladder Logic for Three Motors drive Simultaneously with Interlocking using Siemens TIA Portal

In an industry a sequence of operation takes place with few motors. The sequence...
PLC

How a PLC reads the data from field transmitters?

A critical challenge in instrumentation and control is converting physical or process variables into...
Instrumentation Calculators

Calculator for 4-20mA Signal to 1- 5Volt and PLC 16-bit Raw Count Values

The converter calculation involves converting analog signals, such as 4-20 mA currents, to meaningful...
Temperature Measurement

Temperature Controller Troubleshooting Guide: Common Problems, Causes and Solutions

Table of ContentsWhat is a temperature controller?How Does a Temperature Controller Work?Inaccurate process Temperature...
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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...