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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Process Control

Excel based PID Loop Simulator

Table of ContentsHow to useExcel file - PID Loop Simulator Excel based PID simulator is...
How to

How to read the data sheet of a pressure transmitter?

Table of ContentsIntroduction:Overview of the productPressure Measurement RangeUnits of pressureAccuracy and calibrationSensitivity and resolutionPerformance...
Instrumentation Calculators

Calculator for 3-15 psi signal to 4- 20mA signal conversion

Table of ContentsFormula for the signal conversionBreak down the formulaExample calculationSignal calculator 3 -15 Psi...
SCADA

Different Types of SCADA System Architecture

Table of ContentsDifferent Types of SCADA System ArchitectureHistory of SCADAWhat is Supervisory Control and...
Instrumentation Calculators

4–20 mA to 3–15 psi Signal Conversion Calculator

Table of ContentsWhat is 4-20 mA to 3-15 psi Conversion?Formula for Electrical-to-Pneumatic Signal ConversionBreak...
Instrumentation Calculators

Calculator for Pressure Loss in instrument Air line

When determining the amount of pressure that is lost in the instrumentation tubing and...
How to

Vortex Flow Meter Calibration Procedure

Table of ContentsStep by Step Calibration Procedure for Vortex Flow MeterStep 1: Tools Required for...
Industrial Automation

What is an Earth Pit?

Table of ContentsWhat is the Importance of Earthing?How does Earthing keep you Safe?How does...
Instrumentation

Earthing Drawing

Table of ContentsWhat is Earthing?What is the main purpose of earthing?What are the general...
How to

How to do Safety valve testing and calibration?

Table of ContentsPurpose and Scope:Tools required for control valve calibration:SafetySafety valve calibration and test...
Flow Measurement

Orifice Sizing Guidelines & Rules Associated With Selection

Table of ContentsSizing of an orifice plateWhat are the guidelines considered for sizing of...
Industrial Automation

Difference between Managed Switch and Unmanaged Switch

Table of ContentsDefine a SwitchHow do you classify the switches?Define Managed SwitchDefine Unmanaged SwitchDifference...
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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...