A Programmable Logic Controller (PLC) is a tiny computer that is configured to do specified actions or outputs based on the inputs it receives and a set of rules. PLCs are utilised in a variety of commercial and industrial environments, including as airports, office buildings, railways, and manufacturing plants.
Using a PLC to connect your equipment and systems differs from the more traditional method of employing relay logic circuits. While electrical relays function similarly to Programmable Logic Controller in controlling industrial processes, they have substantial shortcomings in terms of configurability and maintenance. Because electrical banks are made up of a physical wiring system, if the system's operation ever needs to be changed, the physical connections must be fully rewired.
Furthermore, if the system fails, the responsible staff would have to patrol the entire system to determine the root cause of the problem. Depending on the system's complexity, this could take a large amount of time and money. For your convenience, below is an example of an electrical relay room.
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