Examlex
Which of the following statements is not correct?
Normally Open
A term describing a contact or switch that is disconnected in its default state and requires activation to close the connection.
XIO Instruction
An instruction used in PLC programming representing "Examine if Off", used to check if a specific input or bit is off or false.
Ladder Logic
A graphical programming language used to develop software for programmable logic controllers (PLCs) that resembles an electrical schematic of relay logic.
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