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CPU 315-2DP all LED's blink randomly

1/12/2013 8:58 AM	Rate (0)
naveen_paliwal Bronze Member Joined: 4/25/2011 Last visit: 12/23/2025 Posts: 128 Rating: (5)	Dear Expert's I have S7 315-2DP PLC CPU and it running perfectly from last 2 years. but from last week in running machine sometimes all LED's starts flashing. and after power restart everythink is ok and again after certain time same problem. I have changed its CPU but problem is same. now i am going to change its MMC. Is it related to power?? Thanks n Rgd's
	Naveen Paliwal Vibrant Automations Pvt Ltd Rajasthan, India +919887624827 https://www.vaplindia.co.in/ E-mail- info@vaplindia.co.in
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1/12/2013 7:43 PM	Rate (0)
Darius Platinum Member Joined: 9/28/2005 Last visit: 12/9/2025 Posts: 2957 Rating: (243)	Hi, It would be super nice to see contents of diagnostic buffer. Could you post them here ?
	Best regards, Darius
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3/14/2013 11:35 AM	Rate (0)
Saggy Silver Member Joined: 11/8/2011 Last visit: 10/15/2025 Posts: 387 Rating: (43)	naveen_paliwal Dear Expert's I have S7 315-2DP PLC CPU and it running perfectly from last 2 years. but from last week in running machine sometimes all LED's starts flashing. and after power restart everythink is ok and again after certain time same problem. I have changed its CPU but problem is same. now i am going to change its MMC. Is it related to power?? Thanks n Rgd's is this problem solved???? please attach diagnostic buffer

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3/15/2013 5:23 PM	Rate (0)
naveen_paliwal Bronze Member Joined: 4/25/2011 Last visit: 12/23/2025 Posts: 128 Rating: (5)	hi saga, i just changed its MMC and problem solved, because last time i copied image file of one MMC to another(mmc in which i faced problem). somewhere i read that it is not recommend to use MMC with this trick. rgd'
	Naveen Paliwal Vibrant Automations Pvt Ltd Rajasthan, India +919887624827 https://www.vaplindia.co.in/ E-mail- info@vaplindia.co.in
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