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plccentres
Junior
Joined: 15 Oct 2013
Posts: 1
Location: Chennai, Tamil Nadu
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 Posted: 15/10/2013 08:48 Post subject: How does plc work exactly? |
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| Microprocessor is the heart of any computer,it is also called as processor, or CPU. After reading the input signal, the CPU follows the instructions, that a programmer or operator has stored in the PLC's memory. When the PLC is running and following the programmer's instructions, it is called as solving the program. |
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messer
Senior
Joined: 08 Mar 2012
Posts: 2059
Location: Europe
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| Posted: 18/10/2013 22:17 Post subject: Re: How does plc work exactly? |
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| plccentres wrote: | | Microprocessor is the heart of any computer,it is also called as processor, or CPU. After reading the input signal, the CPU follows the instructions, that a programmer or operator has stored in the PLC's memory. When the PLC is running and following the programmer's instructions, it is called as solving the program. |
Dear plccentres,
Something like that..
The difference between a PC and a CPU of a PLC is that all the associated hardware for screen, keyboard, other communications, big memory...and so on ...are not necessary...
You can find in forum some interesting books about how a PLC works ....... |
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