Digital input modules are components used in Programmable Logic Controllers (PLCs) that allow the PLC to interface with digital signals from the external world. These modules typically consist of multiple input channels, each capable of receiving binary signals representing the presence or absence of voltage.
Motivation phase
What are the types of digital inputs?
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Information phase
SYSTEM CONFIGURATION
PLC digital input modules vary in terms of their input voltage levels, input types (such as sinking or sourcing), and isolation capabilities. Some modules are designed to handle high voltages or currents, while others are intended for low-power signals. Isolation helps protect the PLC and other connected equipment from electrical noise and interference.
