PLC blocks

The various PLC blocks and their functions are as follows :  1.   In-put Unit : It acts as an interfacing link between the Input instructions and the ...

Signal transmission

As mentioned in my earlier posts, the i/p instructions are fed to i/p unit. To know about it in details, refer http://electricalfundablog.com/blog/instrumentation-control/process-control . Now, lets discuss about how Signal transmission happens to CPU. During ...

Programmable Logic Controller

A Programmable Logic Controller can be defined in many ways. It can be defined as a program controlled electronic equipment with a reprogrammable memory for storing a set of commands which is used for ...

Process Control

Before going to details of Process control and Automation, Lets understand its basic first. The approach to identify the actual status of ongoing processes at any instance of time, re-analyse the acquired data in accordance with ...

Classification of Instruments

Classification of instruments can be carried out in two categories:Absolute Instrument These instruments give the magnitude of the quantity under measurements in terms of physical constants of the instrument. The quantity to be measured ...

Measuring Instruments

Measuring instruments may be defined as device for determining the value or magnitude of quantity or variable. Measurement generally involves using instruments as physical means of determining a quantity or variable. These instruments serve as an extension ...

Methods of Measurement

Measuring instruments may be defined as device for determining the value or magnitude of quantity or variable.To know about ‘Measuring instruments’ in detail, visit http://electricalfundablog.com/blog/measuring-instrument/665/. Here in this post, we will learn about the methods ...

Measurement

The measurement of a given quantity is essentially an act or result of comparison between the quantity (whose magnitude is not known) and a predefined standard. As both quantities are compared, the result is expressed in numerical ...