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CPU319-3 PN/DP fault

Created by: AlexTab at: 9/24/2014 5:58 AM (11 Replies)

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9/24/2014 5:58 AM	Rate (0)
AlexTab Advanced Member Joined: 11/13/2012 Last visit: 9/6/2023 Posts: 16 Rating: (2)	Hello. I have problem withCPU319-3 PN/DP V2.6.5 6ES7 318-3EL00-0AB0 After power on there is some strange blinking LEDs sequence. Please, see attachment (GIF animated - please, use right image viewer). Single green blinking led = DC5V. Can anybody have right description of this problem? Attachment fault_LEDs.gif (896 Downloads)
	Last edited by: AlexTab at: 9/24/2014 9:36 AM Last edited by: AlexTab at: 9/24/2014 9:35 AM
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9/24/2014 9:54 AM	Rate (0)
olloy Silver Member Joined: 8/27/2010 Last visit: 4/13/2024 Posts: 417 Rating: (37)	Hi! Very interesting) Can I ask additional questions: 1. Did you tried to measure power supply? 2. Did you tried to insert the memory card? 3. Memory reset? 4. Able to conect and to see diag. buffer?

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9/24/2014 10:40 AM	Rate (0)
AlexTab Advanced Member Joined: 11/13/2012 Last visit: 9/6/2023 Posts: 16 Rating: (2)	Hello. 1. Power ok, alone CPU connected to separate PS (24VDC) 2. This blinking is same with/without MMC 3. No reaction 4. No connection In semi-conclusion - CPU is dead (((

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9/25/2014 9:27 AM	Rate (0)
olloy Silver Member Joined: 8/27/2010 Last visit: 4/13/2024 Posts: 417 Rating: (37)	Try to fillSupport Requestbefore CPU will go to the trash bin.

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9/25/2014 9:39 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	AlexTab ...2. This blinking is same with/without MMC ... Do you ever try a new memory card (MUST be a SIMATIC Card!)
IBN-Service Posts: 8946 Rating: (999)
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9/25/2014 9:52 AM	Rate (0)
AlexTab Advanced Member Joined: 11/13/2012 Last visit: 9/6/2023 Posts: 16 Rating: (2)	IBN-Service AlexTab ...2. This blinking is same with/without MMC ... Do you ever try a new memory card (MUST be a SIMATIC Card!) No any reaction. Card is new and empty, 64k MMC (Micro Memory Card 6ES7953-8LF20-0AA0)
	Last edited by: AlexTab at: 9/25/2014 9:55 AM
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9/25/2014 2:00 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	If master reset, new MMC and power off for a while is not helping, you have to send the CPU to Siemens,I am afraid.
IBN-Service Posts: 8946 Rating: (999)
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9/26/2014 3:54 AM	Rate (0)
AlexTab Advanced Member Joined: 11/13/2012 Last visit: 9/6/2023 Posts: 16 Rating: (2)	I'm interesting about explanation of this blinking sequence. For information: We also have second CPU with the same HW fault:6ES7318-3FL00-0AB0 CPU is same as described early, but with Safety extention.
	Last edited by: AlexTab at: 9/26/2014 8:10 AM
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8/24/2017 6:30 AM	Rate (1)
AlexTab Advanced Member Joined: 11/13/2012 Last visit: 9/6/2023 Posts: 16 Rating: (2)	In summary after 5 years of plant working - we have 3 dead 319 CPU with the same problem (two 3EL00 and one 3FL00). All manufactured in 2008. This problem occurs after power supply failure. After detailed searching we found problem inside 319 CPU - in the lower motherboard PMC E9K RM9122 chip is dead (short circuit on its supply line). It is very bad that very expensive 319 CPU is shuddenly make harakiri on working factory. And it happens several times. I think, it is very important to keep this CPU's in the coldest place as cold as possible, because PMC core is overheating and now I understand why 319 CPU have huge radiator inside and why its heavy. Take a note and make preventive steps. Good luck.

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9/3/2017 3:46 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	AlexTab In summary after 5 years of plant working - we have 3 dead 319 CPU with the same problem (two 3EL00 and one 3FL00). All manufactured in 2008. This problem occurs after power supply failure. .... If you have large problems with your power supply, try to use an UPS.
IBN-Service Posts: 8946 Rating: (999)
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