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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Control System

Running Inspection for Power Supply and Redundancy Check for Instrumentation and Control Systems in Process Plants

Table of ContentsWhat Is Running Inspection of an Instrumentation and Control System Power Supply?Why Is Power Supply Inspection Important in a Process Plant?What Should Be Checked During Running Power Supply Inspection?How to Check a 24 VDC Power Supply for Instrumentation SystemsWhat Is Power Supply...
Instrumentation Questions

Troubleshooting of Motorized Control Valve MOV Quiz with 25 Practical Engineering Questions

Why MOV Troubleshooting Skills Matter Motorized control valves are widely used in process plants for isolation, flow control, startup and shutdown operations. An MOV failure can affect production, equipment protection and plant safety. Engineers need to understand actuator operation, motor circuits, torque switches, limit switches,...
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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...
Temperature Measurement

Why 4 wire RTD’s measurement accuracy is better than 2 and 3 wire RTD?

Table of ContentsRTD Measurement: An Overview The Requirement for CompensationBenefits of 4-Wire RTD MeasurementLead Wire...
Industrial Automation

All sensors are transducers but all transducers are not sensors

Table of ContentsUnderstanding the Interaction of Sensors and Transducers in Process Instrumentation Examples and DifferencesDefining...
Valves

Control Valves in Process Industries: A Collection of In-Depth Articles

Control Valve Difference Between Single Seated & Double Seated Control Valves Working of Temperature Control Valve...
Instrumentation Questions

Proximity Switch – MCQ1

We will discuss proximity switch questions and answers in this post, along with information...
Valves

Valves: Resource for Professionals in the Process Industry

Types of Valves Types of Valves Globe Valve, Types of Globe Valve Types of Valves Used in...
DCS

Network Switches requirements in “SCADA” and “DCS” Architecture

Network switches are essential for maintaining reliable and effective communication between various devices, sensors,...
Valves

Explain the difference between a Control Valve and a Shut-Off Valve and give an example of when you would use each

Table of ContentsWhat is a Control Valve?What is a Shut-Off Valve?Differentiate between Control Valve,...
Instrumentation Questions

Instrumentation and Process Control Quiz Hub – 1000+ MCQs for Engineers

Welcome to the most comprehensive collection of Instrumentation and Control quizzes – curated for...
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Latest articles

Control System

Running Inspection for Power Supply and Redundancy Check for Instrumentation and Control Systems in Process Plants

Table of ContentsWhat Is Running Inspection of an Instrumentation and Control System Power Supply?Why...
Instrumentation Questions

Troubleshooting of Motorized Control Valve MOV Quiz with 25 Practical Engineering Questions

Why MOV Troubleshooting Skills Matter Motorized control valves are widely used in process plants for...
FAT Activities

What is Integrated Factory Acceptance Test (IFAT)?

Table of ContentsWhat is Integrated Factory Acceptance Test?Why is IFAT Important in Instrumentation and...
Instrumentation Calculators

Control Valve Leakage Calculator

Table of ContentsControl Valve Leakage Calculator for Seat Leakage Testing What Is Control Valve Leakage?What...