molotov

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About molotov

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    Hi, I am New!

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  • Country Mexico
  1. Hi friends, I have a big question and a big problem, I'm new to programming PLC, I have a system where we use a cognex data reader to read a code of production line parts, these pieces come from the assembly line and this but these pieces are reused and the data reader should read the serial number and delete the record in a Rockwell ETR system and put these parts back on the production line, so I want to improve the PLC logic a bit of counter that when the part is detected 3 times that it returns like a scrap, the system activates an alarm and these pieces are sent to scrap directly and they are not returned to the assembly lines, and my question is if I use a tool FIFO and LIFO Can I access the database generated by the FIFO to compare and know if a piece is not the first time it is sent as scrap? and how much data can I store in a FIFO, well if this tool does not help me, it is possible to send data from rslogix 5000 to an excel database where I can put a thousand or maybe millions of serial numbers to compare and manipulate and gain control over this situation? Thank you very much for your attention.