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History of Programmable Logic Controllers (PLC)

S Bharadwaj Reddy
Every control system may be divided into three general sections: input devices (sensors), controllers, and output devices (actuators). The input devices sense what is happening in the process, the controller...

Siemens PLC Comparator Logic

S Bharadwaj Reddy
Siemens PLC Comparator Logic This article shows the different types of Siemens PLC Comparator Logics and their ladder diagrams. Problem Description Implement equal, not equal, greater or equal, less or...

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