About this document
PLC Programming and Unit Overview is a document available to read on EtoBox.
The document discusses the basic units of a programmable logic controller (PLC). These units include the bus unit module, which allows communication between input/output devices and the CPU via a set of wires called a bus. The input module senses input signals and converts them to a format readable by the CPU. The output module operates in reverse to convert CPU signals to outputs. The interfacing module translates between devices and the CPU for input and output. The programmer module is used to program an
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