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315-2PN/DP plc problem

2/10/2022 9:07 AM	Rate (0)
AS_R Bronze Member Joined: 12/15/2011 Last visit: 1/2/2025 Posts: 56 Rating: (4)	Hi Experts, I am using 315-2PN/DP plc in a project, when we going take this PLC inline after a planned shutdown, it is not accessible with step7. Even not the the ping reply, Earlier this plc was working fine. Now all the status LED of the PLC continually glowing, LED status screenshot attached for reference. It seems some hardware error. Please suggest solution for this problem. Thanks in advance! Regards Attachment IMG-20220210-WA0039.jpg (597 Downloads)

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2/10/2022 9:09 AM	Rate (0)
ChristophD Grandmaster Joined: 5/12/2006 Last visit: 12/19/2025 Posts: 22816 Rating: (3073)	have you re,ove the MemoryCard and try to power on the PLC?Do this work?

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2/10/2022 9:37 AM	Rate (0)
AS_R Bronze Member Joined: 12/15/2011 Last visit: 1/2/2025 Posts: 56 Rating: (4)	Thanks for your reply! I have tried to removed the memory card also, but found no impact. Regards,

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2/10/2022 2:07 PM	Rate (0)
mopS04 Posts: 5521 Rating: (1058)	hi AS_R, when you have no access to the PLC, with or without memory card, you could try to reset it, like shown in the manual: Resetting to the Delivery State If this doesn´t work either, and there is now way to get online, I would contact the repair-center. hope this helps, regards,
mopS04 Posts: 5521 Rating: (1058)
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2/11/2022 8:14 AM	Rate (0)
AS_R Bronze Member Joined: 12/15/2011 Last visit: 1/2/2025 Posts: 56 Rating: (4)	Thanks for reply!!! Problem is resolved now, Removed the memory card from this PLC , format the card with another PLC and reinsert again. And reboot the PLC, it is working normally now. Regards,

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