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Logix5000 Controllers General Instructions - SLAC Confluence

Logix5000 Controllers General Instructions - SLAC Confluence

Logix5000 Controllers General Instructions - SLAC Confluence

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130 Timer and Counter <strong>Instructions</strong> (TON, TOF, RTO, TONR, TOFR, RTOR, CTU, CTD, CTUD, RES)Example:A conveyor brings parts into a buffer zone. Each time a part enters,limit_switch_1 is enabled and counter_1 increments by 1. Each time apart leaves, limit_switch_2 is enabled and counter_1 decrements by 1.If there are 100 parts in the buffer zone (counter_1.dn is set),conveyor_a turns on and stops the conveyor from bringing in anymore parts until the buffer has room for more parts.Publication 1756-RM003I-EN-P - January 2007

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