Podcast
Questions and Answers
What is recorded in memory as logic 1 and what is recorded as logic 0?
What is recorded in memory as logic 1 and what is recorded as logic 0?
A closed contact is recorded in memory as logic 1 and an open contact as logic 0.
What happens when the states of the input contacts provide logic continuity from left to right across the rung?
What happens when the states of the input contacts provide logic continuity from left to right across the rung?
When the states of the input contacts provide logic continuity from left to right across the rung, the output coil memory location is given a logic 1 value and the output module interface contacts will close.
What happens when there is no logic continuity of the program rung?
What happens when there is no logic continuity of the program rung?
When there is no logic continuity of the program rung, the output coil memory location is set to logic 0 and the output module interface contacts will be open.
What is the completion of one cycle of the PLC sequence called?
What is the completion of one cycle of the PLC sequence called?
What does the scan time provide a measure of?
What does the scan time provide a measure of?
When is the actual output updated?
When is the actual output updated?
What type of power lines are connected to the controller's L1 and L2 terminals?
What type of power lines are connected to the controller's L1 and L2 terminals?
How are the pressure switch, temperature switch, and pushbutton field input devices wired?
How are the pressure switch, temperature switch, and pushbutton field input devices wired?
How is the motor starter coil connected?
How is the motor starter coil connected?
How is the ladder logic program entered?
How is the ladder logic program entered?
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