Examlex
Which of the following statements is true about the Internet?
Examine If Open
A programming instruction used in PLCs to check if a specific input or switch is not activated or in an open state.
XIO
An acronym for "Examine if Open," an instruction in PLC programming that checks if a specified input or bit is OFF.
Ladder Logic
Ladder Logic is a graphical programming language used in programmable logic controllers (PLCs) to represent digital logic circuits and is designed to resemble electrical relay logic diagrams.
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