What is a counter in sensor logic and differentiate between an up-counter and a down-counter?

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Multiple Choice

What is a counter in sensor logic and differentiate between an up-counter and a down-counter?

A counter in sensor logic is a device that tallies input events rather than storing energy or acting as a sensor. It watches for pulses from sensors and updates its count accordingly. An up-counter increases its value each time an event occurs, counting upward with incoming pulses. A down-counter decreases its value with each event, counting downward and often reaching zero to indicate a limit or completion. This makes counters useful for tracking steps or enforcing a maximum number of cycles. The other options don’t fit because a counter doesn’t store energy, doesn’t slow the processor, and isn’t itself a sensor.

A counter in sensor logic is a device that tallies input events rather than storing energy or acting as a sensor. It watches for pulses from sensors and updates its count accordingly. An up-counter increases its value each time an event occurs, counting upward with incoming pulses. A down-counter decreases its value with each event, counting downward and often reaching zero to indicate a limit or completion. This makes counters useful for tracking steps or enforcing a maximum number of cycles. The other options don’t fit because a counter doesn’t store energy, doesn’t slow the processor, and isn’t itself a sensor.

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