PLCs
What is Digital Input?
Definition
A PLC or drive input channel that detects discrete ON/OFF signals from switches, sensors, and contacts. Digital inputs read the state of field devices and provide binary information for logic control decisions.
Related Terms
Digital Output
A PLC or drive output channel that switches ON/OFF to control external loads suc...
I/O Module
An input/output module that connects field sensors and actuators to a PLC or con...
PLC (Programmable Logic Controller)
A ruggedized digital computer used to automate industrial processes by reading i...
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