Which of the following statements is not correct?
A) PLC input instructions are logical symbols associated with voltage at the input module terminals.
B) The PLC rung output [-( )-] is a discrete output instruction or bit in memory.
C) Each rung of the ladder logic represents a logical statement executed in software — inputs on the right and outputs on the left.
D) Input and output instructions in ladder logic do not directly represent the switches and actuators.
C
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