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vrbasgrad

micrologix 1500/hsc/encoder 1000ppr

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I am having problems with HSC reading Encoder 1000ppr. I am using micrologix 1500 processor and encoder is hooked up at Input 0.It works fine 2/3 hours than it stops reading encoder. I tryied to change input filter time but it simply want do it, after couple of shut downs of hole systems it starts to read againg. All wiring is done properly and there is no lose connection.I can see signal coming into the Input 0 but PLC just doesn't want to read it sometime.Files is attached for review. Does anyone nows if there is some another settings except Input Filter time to be done. Thanks in advance QUANTUM_QMAX_JULY_30_2009_REV_1.RSS

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I doubt that this will help but ... do you have any idea what the total count is up to at the 2/3 hour point?

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