You see the the ACC (Accumulated) and PRE (Preset) take up a word each (16 bits each).
That means each timer consumes 3 words.Ģ. You can see we have 40 elements that take up 120 words. On the left hand pane, right click the "Data Files" folder and select properties. One reason we chose the Micrologix 1000 for this project is it allows the copying of the T4 data table to the N7 data table.ġ. 01, it never made sense to me how the TON instruction could keep track of 32767 seconds when it has a time base of 1 second. While it is feasible for the processor to be able to update the TON's accumulated value when the timebase is. As you read more of our lessons you will find that we don't believe there are any mysteries to how a PLC functions. Most explanations of timers end with the explanations contained in the rungs above, leaving the timers internal operation somewhat of a mystery.
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