From the course: PLC Sequencer Logic
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SQL ladder logic - Ladder Logic Tutorial
From the course: PLC Sequencer Logic
SQL ladder logic
The instruction has the following parameters: File is: B-3-0. Source has values from input one. Control is R6:0. And the length is 10. I used the record push button to regulate when to load the data to the file, basically achieving the true to false transition. For the same rung, adding an X-I-O instruction using the control DunBite: R-6 DunBite, to prevent the instruction from reloading the data to position one again. Remember, that when the instruction has operated to the last position and has a true to false transition, it resets to position one. Every time the sequencer load instruction is energized one word from the input module is being read and recorded in Data File B-3. When ten words of data have been recorded the sequencer DunBite R6 word zero DunBite energizes. Then an X-I-O instruction off the controlled DunBite and rung zero opens and stops the data recording process. And I can use another push…
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