One bit processor is used to perform logic functions. Two types of processors as a single bit or word processor can be incorporated with a PLC. That’s a lot of hassle for a minor change.īeing a microprocessor-based CPU, it replaces timers, relays, and counters. The only way to achieve this is to completely rewire our circuit to add a timing relay. With this hard-wired setup – we’re stuck. Now you are given a task that when you turn ON the switch, the light should glow only after 30 seconds. In general, the light operates under two conditions – ON and OFF. Imagine you have a light connected to a switch. Let’s look at an example to better understand this advantage. In a hard-wired control system, you’re essentially having to rip out wires and start from scratch (which is more expensive and takes longer). The main advantage of PLC over a “hard-wired” control system is that you can go back and change a PLC after you’ve programmed it, at little cost ( just the cost of the programmer’s time). There is a wide range of PLC functions like timing, counting, calculating, comparing, and processing various analog signals. Since then PLC has revolutionized the industrial and manufacturing sectors. PLCs were invented by Dick Morley in 1964.
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#PUMP CONTROL LADDER LOGIC PROGRAM SOFTWARE#
They both have a power supply, a CPU (Central Processing Unit), inputs and outputs (I/O), memory, and operating software (although it’s a different operating software).
![pump control ladder logic program pump control ladder logic program](https://i.pinimg.com/736x/7a/dc/88/7adc8810ab53f87062d29d8d4108c02f.jpg)
PLCs share many features of the personal computer you have at home. PLCs are used to automate industrial processes such as a manufacturing plant’s assembly line, an ore processing plant, or a wastewater treatment plant.
![pump control ladder logic program pump control ladder logic program](https://instrumentationtools.com/wp-content/uploads/2019/11/Multiple-Pumps-Control-using-PLC.jpg)
A PLC is a computer specially designed to operate reliably under harsh industrial environments – such as extreme temperatures, wet, dry, and/or dusty conditions. PLC stands for “Programmable Logic Controller”.