Siemens v1.0 Manual de servicio Pagina 106

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Extended example
3.2 Expanding the program
STEP 7 Basic V10.5
106 Getting Started, 12/2009, A5E02651459-01
8. Interconnect the parallel connection with the input R1 of the instruction "Set/reset flip-
flop".
Result
You have programmed the PLC of the conveyor drive. The conveyor will be driven or
stopped depending on which position a milk bottle has on the conveyor. The position of the
milk bottles is detected with the help of the light barriers "LS_1", "LS_2" and "LS_3".
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