Author name: Sundareswaran Iyalunaidu

With over 24 years of dedicated experience, I am a seasoned professional specializing in the commissioning, maintenance, and installation of Electrical and 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.

Connecting the Industrial World: An Exploration of Communication Protocols in Automation and Instrumentation

To ensure perfect connectivity and data sharing between devices, controllers, and systems, industrial automation relies on an extensive variety of communication protocols. These protocols are critical in a variety of industries, providing solutions for different communication needs such as real-time data transmission, remote control, and process automation.  Communication Protocols in Automation and Instrumentation In this …

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How to troubleshoot TRIAC Output for PLC AC Modules?

Multimeter as a Key Tool Challenges with AC Outputs Driven by TRIACs What is TRIAC output in PLC? Understanding TRIACs How do you troubleshoot a TRIAC output? Testing a TRIAC Output Leakage Current Problem Interpreting Intermediate Voltage Readings TRIAC Series Circuit Representation Factors Affecting Voltage Drop Role of Multimeter Resistance Terminal State Consideration Functional Coil …

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Mastering DeviceNet Industrial network protocol: Top Interview Questions and Answers – Part 2

1.What are the benefits of using DeviceNet? Advantages of employing DeviceNet include simplified cabling, resistance to noise, versatile network topologies, integrated power and data transmission, and support for numerous nodes. 2.What protocol does DeviceNet utilize for its transport and network layers? DeviceNet utilizes the Common Industrial Protocol (CIP) for its transport and network layers, offering …

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Streamlining Your Flowmeter Selection Process: Tips and Insights

Comprehensive Flowmeter Selection Considerations Choosing the right flowmeter necessitates a thorough examination of multiple critical factors: What are the key factors to consider when choosing a flowmeter? Media and Application Specific Application Details Accuracy Assessment Total Cost Evaluation Major Flowmeter Technologies Overview Differential Pressure Flowmeter Technology What are the advantages and limitations of differential pressure …

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Dissolved Oxygen Analyser Working Principle

What is Dissolved Oxygen? Measurement of Dissolved Oxygen by the Membrane Electrode Method Classification of Membrane Electrode Method These Membrane Electrode Methods differ only in the presence or absence of an externally applied voltage, but offer the same performance, features, and usage method and are classified into Calibration of the Dissolved Oxygen Analyzer The calibration …

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Understanding Wireless HART: A Comprehensive interview Questions & Answers Part 3

Learn more about WirelessHART, a wireless communication technology for industrial process automation, in this collection of questions and answers. Find more about its mesh networking layout, which is HART device compatibility, flexibility and scalability advantages, real-time monitoring, self-healing prowess, and strong security features. Learn about Wireless HART’s function in improving operational effectiveness and maintenance procedures …

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Heat Detector Testing Procedure

What are Heat Detectors? What are the types of heat detectors? However, various Heat Detectors operate      in a different way but provide the same outcome. Heat Detectors are classified as  Steps for Testing Procedure of Heat Detector Preparation for testing Procedure Start of Testing Procedure General procedure for testing heat detectors Before testing …

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Basics of Chromatography Operation

What is Chromatography? Principles of Chromatography: Components of Chromatography  Chromatography is classified into two phases  For example, in  Basics of Chromatography Operation Sample Application:  Separation Process:  Detection:  Data Analysis:  Retention Time:  Classification of Chromatography Chromatography is classified into various techniques based on its own specific principles and applications. Some common types of chromatography techniques are …

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Thermostat Working Principle

What is Thermostat? The Science of Bimetallic Thermostat Setting the Temperature A dial allows us to select the temperature at which the heater is required to turn on or turn off. Bimetal Strip:  The key component of a bimetallic thermostat is the bimetallic strip, which is usually made by joining two different metals with different …

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