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Detailed description of the operation of the PL7_TON function
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Original instructions
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Detailed description of the operation of the PL7_TON function
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Original instructions
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Phase
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Description
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1
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When there is a rising edge on the TON_Timer_1.S, input the timer is started.
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2
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The current value TON_Timer_1.ET of the timer increases from 0 towards TON_Timer_1.PT at a rate of one unit for each pulse of the time base TB.
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3
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The output bit TON_Timer_1.Q changes to 1 as soon as the current value reaches TON_Timer_1.PT.
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4
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The TON_Timer_1.Q output bit remains at 1 while the TON_Timer_1.S input is at 1.
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5
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When the TON_Timer_1.S input is at 0, the timer is stopped, even if it was running at the time: TON_Timer_1.ET takes the value 0.
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