A vision camera scans the pallet bar codes as they pass, the number of parts on the pallet (not a constant value) is extracted from the bar code data, and that number is transferred to a PLC and placed in a register e.g. N7: 5. A bit (e.g. B3: 0/3) in the PLC is turned on by the vision system when the quantity data has transferred. The total number of pallets is stored in a register e.g. N7: 4. Design a ladder program that keeps a running total for pallet parts in a register (e.g. N7: 6) and the number of pallets left in the batch in another register (e.g. N7: 4). Include logic for a normally open push button (PB) switch (e.g. I: 1/4) that is used to clear register the total register (e.g. N7: 6 mentioned above) at the end of a production run in preparation for the next batch