PLC INPUTS AND OUTPUTS DEVICES : PLC TUTORIAL - 5

In our last Tutorial we discuss about PLC programming languages. But in this tutorial we will be covered about the Input and Out devices of a PLC.

 
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 What Do We Need To Consider When Choosing A PLC?

There are many PLC systems on the market today. Other than cost, you must consider the following when deciding which one will best suit the needs of your application.

• Will the system be powered by AC or DC voltage?
• Does the PLC have enough memory to run my user program?
• Does the system run fast enough to meet my application’s requirements?
• What type of software is used to program the PLC?
• Will the PLC be able to manage the number of inputs and outputs that my application requires?
• If required by your application, can the PLC handle analog inputs and outputs, or maybe a combination of both analog and discrete inputs and outputs?
• How am I going to communicate with my PLC?
• Do I need network connectivity and can it be added to my PLC?
• Will the system be located in one place or spread out over a large area?