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Tom749

SCAN TIME PULSE

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Hi, there. I have one question about Scan time pulse in Siemens PLC such as my attached file. Could you explain about the logic at there? Thanks for your help in advance. Edited by Tom749

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In the example you posted the Marker "M0.5" will be HIGH (On) for the first scan of OB1 when the PLC goes into run mode. It will be LOW (off) for the rest of the scans. Edited by Moggie

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