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CPU 319 Not Responding, all LED are on constantly

Created by: JSMTek at: 1/19/2010 7:02 PM (18 Replies)

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1/19/2010 7:02 PM	Rate (0)
JSMTek Posts: 50 Rating: (2)	Greetings Experts. We have a new 319 CPU which is not responding at all, it was tested and working properly a while ago. Now all LEDs are on constantly, except 5V. We cannot communicate with the CPU either with ethernet or MPI/DP cable. When doing MReset, nothing happens, no flashing LED etc. Any suggestions?
JSMTek Posts: 50 Rating: (2)
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1/20/2010 4:44 AM	Rate (0)
H-H Platinum Member Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating: (309)	Hello JSMTek, take out your CPU from its rack and try a new power cycle with a new 24VDC supply. If it doesn't work then most likely the CPU is defective. Normally a defective state is represented by flashing of all LEDs but for me, the absence of 5VDC will mean a defective hardware. I hope someone here would have more to say but I think you should contact your local Siemens office. Best regards. H-H

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6/25/2013 3:40 AM	Rate (0)
joeystokes Posts: 9 Rating: (0)	I am having the same problem with a 319PN/DP that is new. Can someone share what fixed this? Was it the power supply or the CPU? Thanks
joeystokes Posts: 9 Rating: (0)
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6/25/2013 6:37 AM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	Hi Check the Power Supply, Connector if you have connected with IO cards, Remove the CPU and Check for any external object in the port hole. Switch off the power supply and check with another power supply as said by others, Even then the same condition exisit then change cpu.
	Jazz
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6/25/2013 7:07 AM	Rate (0)
N. Vijay Silver Member Joined: 3/17/2013 Last visit: 8/25/2024 Posts: 481 Rating: (43)	Hi At least at 9 instants with my personal experience I found, whenver all LEDs are flashing, more chance of CPU HW fault either with S7 family Regards, Vijay

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6/25/2013 7:01 PM	Rate (0)
Amit_86 Platinum Member Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating: (272)	JSMTek Greetings Experts. We have a new 319 CPU which is not responding at all, it was tested and working properly a while ago. Now all LEDs are on constantly, except 5V. We cannot communicate with the CPU either with ethernet or MPI/DP cable. When doing MReset, nothing happens, no flashing LED etc. Any suggestions? Hello, In my opinion , your CPU is defective. Go for Support Request
	VANDE MATARAM.....
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6/25/2013 9:37 PM	Rate (0)
SolutionFinder Posts: 559 Rating: (87)	In this case you do one thing, Just go to below link: https://support.automation.siemens.com/WW/adsearch/resultset.aspx?region=WW&lang=en&netmode=internet&ui=NDAwMDAxNwAA&term=cpu+319+firmware&ID=44442927&ehbid=44442927 Download the latest firmware for the cpu. Copy it to MMC as instructed. & download that firmware update to CPU. surely you will get yout problem solved.
SolutionFinder Posts: 559 Rating: (87)
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6/26/2013 7:23 PM	Rate (0)
RKM Posts: 93 Rating: (13)	Based on my previous experience I can say that in case of all LEDs are blinking then there is a chance of firmware update to solve a problem.Update can be done by either PG/PC of MMC card. And in case of all lights are constantly on then there is mejority chances to have a faulty CPU. In this case more then hardware I think a problem of processor or electronics problem as it does not provide any means of diagnostics.
RKM Posts: 93 Rating: (13)
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6/27/2013 5:00 AM	Rate (0)
Amit_86 Platinum Member Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating: (272)	JSMTek Greetings Experts. We have a new 319 CPU which is not responding at all, it was tested and working properly a while ago. Now all LEDs are on constantly, except 5V. We cannot communicate with the CPU either with ethernet or MPI/DP cable. When doing MReset, nothing happens, no flashing LED etc. Any suggestions? Hello Jsmtek, Any update? Just curious to know the result . please update as soon as you got some result.
	VANDE MATARAM.....
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6/27/2013 5:27 AM	Rate (0)
DS SURESH KUMAR Bronze Member Joined: 4/17/2012 Last visit: 8/30/2024 Posts: 474 Rating: (10)	Amit_86 JSMTek Greetings Experts. We have a new 319 CPU which is not responding at all, it was tested and working properly a while ago. Now all LEDs are on constantly, except 5V. We cannot communicate with the CPU either with ethernet or MPI/DP cable. When doing MReset, nothing happens, no flashing LED etc. Any suggestions? Hello Jsmtek, Any update? Just curious to know the result . please update as soon as you got some result. me too

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