Reading an ASCII value from bar code scanner into RS Logix 500 programming environment , Processor: Allen Bradley Micrologix 1100
I am trying to build an inventory management system that receives part numbers(Format, 123-45:67) from a bar code scanner and uses Allen Bradley 1100 PLC to keep a track of parts in stock .
I require some help/hints on programming steps, to detect when there is a new bar code scan; write the value (part number) through Channel 0 and store in a string and clear buffer for next barcode scan.
I do understand that key is to use ARL instruction but I can not figure out how to trigger a false to true transition for the same, as there is no traditional input in this case.