![]() ![]() While DCS stands for "Distributed Control System". It is often a computer or laptop and also used for running programming tool (software). - Programming Device: acts as the brain of the system which receives signal and uses a Binary language (0 or 1) to process it and give Binary output.- Processor or sometimes called (CPU) : The size and type of CPU will determine things like: the programming functions available, size of the application logic available, amount of memory available, and processing speed.These act like an actuator the PLC that can change to adjust or control the process – motors, lights, relays, pumps, etc. - Input/ Output assembly (I/O): inputscarry signals from the process into the controller, they can be input switches, pressure sensors, operator inputs while outputsare the devices that the PLC uses to send changes out to the world.- Power Supply: Common power levels used are 24V DC or 120 VAC. ![]() PLC is ideal for single batch or high-speed control, it have a relatively simple, low-cost design, and are the core of the system. It is a computer-type device used to control equipment in an industrial facility PLC stands for "Programmable Logic Controller" which is evolution for early control systems used with industrial automation and process control. For Process Engineer point of view : what is the difference between PLC, DCS & SCADA ? Lets get familiar with PLC
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