Timers gives the precision in time. Timer on delay starts timing when instruction is true. Timers are used to track time when instruction are on or off. They could also keep track on a retentive base.
The programmer specifies this value. When the accumulated time reaches the preset value the controller sets the done bit. When the accumulated value becomes equal to or greater than the preset value, the done bit is set. Usually preset value is from 0 - 32,767
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8 сен 2024