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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PLC

Understanding NO vs NC Contacts is key for Logic Writing in PLC Programming

Table of ContentsWhat are NO and NC Contacts?Definition of NO and NC ContactsWhat is an NO (Normally Open) Contact?Typical uses NO (Normally Open) ContactWhat is an NC (Normally Closed) Contact?Typical uses NC (Normally Closed) ContactRelay System Example in AutomationRelay DeactivatedRelay ActivatedHow these Contacts Work...
Engineering

Relief Valve Datasheet in Under 10 Minutes: 7 Must-Know Definitions

Table of ContentsImage 1: Sectional View of a Spring-Loaded Safety Relief ValveHow a Spring-Loaded Relief Valve Works7 Must-Know Definitions in Relief Valve DatasheetsDefinition 1: Built-Up BackpressureDefinition 2: Superimposed BackpressureDefinition 3: Total BackpressureDefinition 4: Cold Differential Test Pressure (CDTP)Definition 5: Set PressureDefinition 6: Re-seating PressureDefinition...
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Instrumentation Calculators

PSIA to PSIG Conversion Calculator

Table of ContentsUnderstanding PSIA (Pounds per Square Inch Absolute)Understanding PSIG (Pounds per Square Inch...
Automation

Understanding Differences of SIS, PLC, and BPCS in Industrial Automation

Table of ContentsWhat are SIS, PLC, and BPCS?What is SIS (Safety Instrumented System)?What is...
Instrumentation Calculators

Mass Flow Unit Conversion: Pounds per Hour (lb/h) to Kilograms per Hour (kg/h)

Engineers, plant operators, and technical professionals can use this Flow Unit Conversion Calculator to...
Instrumentation Questions

Top 25 MCQs on Turbine Supervisory Instrumentation (TSI) for Instrumentation Professionals

Monitoring and safeguarding rotating machinery like steam and gas turbines in process sectors depends...
Instrumentation Calculators

Mass Flow Unit Conversion Calculator: Tons per Day (TPD) to Kilograms per Hour (kg/h)

Engineers, plant managers, and process engineers can precisely convert Tons per Day (TPD) to...
Commissioning

Step-by-Step Logic Check Procedure for Pre-Commissioning Activities in Process Plant

Table of ContentsStep 1. Understand and Validate the Cause & Effect (C&E) MatrixStep 2....
Instrumentation Calculators

Mass Flow Unit Conversion: Slug per Second (slug/s) to Kilograms per Second (kg/s)

Engineers and researchers may precisely and easily convert Slugs per Second (slug/s) to Kilograms...
Communication

Modbus TCP/IP vs Profinet: Which Protocol Suits your Industrial Network Best?

Table of ContentsProtocol Overview - Modbus TCP/IPProtocol Overview - ProfinetFactor 1. Performance and TimingFactor...
Communication

Step-by-Step Guide for Installing and Commissioning HART and WirelessHART Devices for Engineers and Technicians

Table of ContentsIntroduction to HART and WirelessHART TechnologyProject Planning for WirelessHART InstallationsIntegration with Host...
Instrumentation Calculators

Mass Flow Unit Conversion Calculator: Kilograms per Hour (kg/h) to Metric Tons per Hour (t/h)

Engineers and process experts may precisely convert Kilograms per Hour (kg/h) to Metric Tons...
Instrumentation Questions

Top 25 MCQs on Control Valve Types, Selection, and Applications for Project Engineers

Key parts of process industries are control valves, which control fluid flow, pressure, temperature,...
Instrumentation Calculators

Mass Flow Rate Conversion: Kilograms per Second (kg/s) to Pounds per Second (lb/s) Flow Unit Conversion Calculator

Engineers and process experts can convert Kilograms per Second (kg/s) to Pounds per Second...
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PLC

Understanding NO vs NC Contacts is key for Logic Writing in PLC Programming

Table of ContentsWhat are NO and NC Contacts?Definition of NO and NC ContactsWhat is...
Engineering

Relief Valve Datasheet in Under 10 Minutes: 7 Must-Know Definitions

Table of ContentsImage 1: Sectional View of a Spring-Loaded Safety Relief ValveHow a Spring-Loaded...
Instrumentation Calculators

PSIA to PSIG Conversion Calculator

Table of ContentsUnderstanding PSIA (Pounds per Square Inch Absolute)Understanding PSIG (Pounds per Square Inch...
Automation

Understanding Differences of SIS, PLC, and BPCS in Industrial Automation

Table of ContentsWhat are SIS, PLC, and BPCS?What is SIS (Safety Instrumented System)?What is...

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