CLICK_PLC_lab1_files/image002.jpg' alt='Plc Traffic Light Programming' title='Plc Traffic Light Programming' />PLC based Smart Street Lighting Control 65 Copyright 2014 MECS I. J. Intelligent Systems and Applications, 2014. Leading industrial automation companies in India providing PLC SCADA DCS training in Chennai. Selalu Muncul Windows Activation. Best PLC training center in Chennai. Automation in India. PLC vs Arduino Show Down. Hackaday readers dont need an introduction to the Arduino. But in industrial control applications, programmable logic controllers or PLCs are far more common. These are small rugged devices that can do simple things like monitor switches and control actuators. Plc Traffic Light Program' title='Plc Traffic Light Program' />Being ruggedized, they are typically reasonably expensive, especially compared to an Arduino. Doug Reneker decided to evaluate an Arduino versus a PLC in a relatively simple industrial style application. The application is a simple closed loop control of flow generated by a pump. A sensor measures flow for the Arduino, which adjusts a control valve actuator to maintain the specified setpoint. The software uses proportional and integral control the PI part of a PID loop. Although the Arduino has a good selection of IO pins, it doesnt have common IO capabilities youd expect in an industrial controller. For example, the flow meter used in the demo produces a current proportional to flow ranging from 4 m. A to 2. 0 m. A. Thats a very common set up in an industrial device since current loops are able to handle long wire runs, along with other reasons. Doug found he had to create a converter to get the data to the Arduino. He also needed a way to convert the Arduinos PWM output to a 4 2. A output, which was even more complicated. Of course, the PLC had all of these options already, along with a user interface suitable to the task. From that Doug drew the conclusion that while the basic hardware was cheaper, it was a wash by the time you added the ancillary components. He also felt that the engineering time to build the Arduino version of the project swamped all the costs of using the PLC. Plc Traffic Light Program' title='Plc Traffic Light Program' />Technology keeps you connected everywhere you go, helps you capture every moment makes your life a bit easier stay uptodate with tips tricks from eHow. InsideCommercial Wireman Apprenticeship Program Starting Wage 27. Hr. This is a five year apprenticeship program. Apprentices accepted to the program join the. Journals, Singapore available at www. ISSN 09761349 gopalax Publications 49 5. PLC CX PROGRAMMER FOR CP1E CXProgrammer, the. In general, we dont disagree. However, it depends on what you are trying to accomplish. While a hammer is good at driving nails, it isnt good with screws. You need the right tool for the job. If you really had 4 2. A gear and needed a PLC like user interface, then, of course, the PLC is probably the right choice. However, if you had started with the Arduino, you could have selected better flow monitoring and actuator choices, provided better power, and used a user interface more suited for the Arduino and gotten a better result. Dont get us wrong. PLCs have a place. So do Arduinos. So do ARM chips, Raspberry PIs, and 5. For Dougs project a PLC was clearly the right answer. That doesnt mean it is always the right answer. Internet Speed Booster 2012 Full Version on this page. However, we did think seeing the comparison between the two might help PLC experts understand the Arduino better and vice versa. Although most PLCs are proprietary, weve covered Open. PLC before. Maybe the best idea isnt to pick one or the other, but use both and play to their strengths.