Hi David, Thanks for your quick response. And yap, it's super complicated. Here is some examples for each code pattern. (M5 pattern is more complicated so I avoid posting that.) Code A M6 2L2111 1820 A2E M15 JAC110A A9B Code B M1 2L2111 1820 A1D A19 JAC440E C8D Code C MD 2MD601 1820 A2E M20 JAC220E B6O Code D MD 2MDJ01 1820 A2E A12 JAC120D E9F Code E M6 2MD601 1850 A1R QRF JAC220E B6O For example, Code A: M6(=M6), 2L211(<>2MD5*), 1820(<1829), rest of data can be anything because logic table equals "*". Thanks! Mao
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