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Unit 4 Vocab.

Across
This timer is non-volatile, it accumulates time whenever it is energized. Also needs to be programed with a reset.
This input instruction is used to trigger an event to occur one time.
Exceeding the numerical capacity of a device such as a timer or counter. It can be negative or positive.
The number of elapsed timed intervals or counted events.
This type of timer bit, energizes while the time is accumulating and de-energizes, when time reaches its pre-set.
An output that is associated with a retentive timer or counter to set it back to 0 when energized.
The act of reducing the contents of a storage location or value in varying increments.
This timer bit only energizes when the pre-set time is reached.
An event that starts from 0 and increments up to the pre-set value.
Typically set at either 1.0, 0.1, or 0.01. It is a unit of time generated by a microprocessors clock circuit and is used by the PLC timer instruction.
Down
A counter that starts from a specified number and increments down to 0.
The number of time intervals or events to be counted.
This technique is when you use two timers to reset each other.
This type of timer is volatile. When the timer is energized, the timer’s accumulated time does not increase. However, when the timer is de-energized, that is when the accumulated time increases. The output device will be energized until the timer hits the preset value.
A programmed technique that sets a storage bit or output for only one program scan.
This technique is used to extend the timing or counting range beyond what would normally be available. It involves the driving of one timer or counter instruction from the output of another.
This type of timer bit, which energizes associated outputs, while time is accumulating and when the pre-set time is reached.
The act of increasing the contents of a storage location or value in varying amounts.
This type of timer is volatile. This timer is switched on immediately after it is energized. The output device will energize after the timer accumulated time has passed.