I'm having a problem with an AB Micrologix 1000 program that utilizes a sequencer (SQO) to alternate the operation of a series of lights. I'm fairly new to PLC's, but I understand ladder logic and have been successfully modifying previously-created programs as needed for new applications. I want to revise an existing program that sequences five lights(SQO Length=5) to one that sequences six(SQO Length=6). The original Length 5 program works fine. But in the Length 6 program, the output bit for position six never gets set, so the sixth light is never turned on. Any suggestions out there?
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