PLC
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PLC programming – Latching relays
The Latching relays are designed to keep the relay closed after the coil power has been disconnected. The usual relay…
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Guidelines for PLC wiring
Introduction The PLC – programmable logic controller – is an industrialised computer designed specifically for industrial control systems.To know more…
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How to write a PLC ladder logic program?
The ladder logic programming is commonly used to program PLCs. A PLC takes input from field devices and based on the programming instructions…
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DIFFERENCE BETWEEN DCS ,PLC AND SCADA
DIFFERENCE BETWEEN DCS ,PLC AND SCADA SCADA (Supervisory contol and Data Acquisition) is essentially a computer based (usually PC nowadays) system for…
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COUNTERS in PLC Programming
Introduction There are two basic counter types: count-up and count-down. When the input to a count-up counter goes true the…
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An introduction to PLC timer’s
Introduction This function is used to provide a time-delay in a circuit. In the example shown in figure, a switch-off…
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Low Cost PLC’s for beginners
Introduction I would like to introduce some low cost PLC’s (Programmable Logic Controller) hardware for beginners to learn about PLC. Instead…
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Introduction to PLC hardware- part 2
Introduction Earlier we discussed about the basics of PLC hardware .This is the continuation of that .In this session we…
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Introduction to PLC hardware part 1
INTRODUCTION Many PLC configurations are available, even from a single vendor. But, in each of these there are common components…
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PLC program for a batch process
Introduction Hey guys in this session we are gonna discuss about a PLC program for a batch process.In my earlier…
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