Programmable Logic Controller (PLC)
The PLC offers a simples solution for modifying the operation of control system.
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A FLEXIBLE SIMPLE SOLUTION FOR OPERATION
A programmable logic controller (PLC) is an industrial solid-state computer that monitors inputs and outputs and makes logic-based decisions for automated processes or machines. The PLC offers a simples solution for modifying the operation of the control system.
The CPU, contains an internal program that tells the PLC how to perform the following functions:
- Execute the Control Instructions contained in the User’s Programs. This program is stored in “nonvolatile” memory, meaning that the program will not be lost if power is removed.
- Communicate with other devices, which can include I/O Devices, Programming Devices, Networks, and even other PLCs.
- Perform Housekeeping activities such as Communications, Internal Diagnostics, etc.