As shown in figures "A" and "B" of the illustrated PLC ladder and input/output timing diagrams, the application of the on-delay timer is used to produce what effect? See illustration EL-0245.
• On-delay timer (TON) operation: how long after the input turns ON does the timer output change? • Difference between on-delay, off-delay, and pulse functions in PLCs • How the timing diagram in figure B shows the relationship between In 1, Out 1, and the Timer signal
• Look at when Out 1 becomes active compared to In 1. Does Out 1 turn on immediately with In 1, or only after some time has passed? • Check what happens when In 1 turns OFF. Does Out 1 turn off right away, stay on for a delay, or produce only a short burst? • Compare the shape and duration of Out 1 with the short pulse on In 1. Is the timer extending, delaying, or repeating the signal?
• Verify whether Out 1 turns ON only after the timer has finished counting or whether it turns ON immediately. • Confirm if Out 1 remains ON after In 1 goes OFF, and for how long, by reading the timing diagram carefully. • Match the behavior you see (delay before ON, delay before OFF, cycling, or a single stretched pulse) to the standard PLC timing types: on-delay, off-delay, on-off cycle, or pulse.
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