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CPU 928B overall reset request is generated automatically.

Created by: Shivaji Patil at: 5/10/2010 9:44 AM (11 Replies)

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5/10/2010 9:44 AM	Rate (0)
Shivaji Patil Posts: 140 Rating: (1)	Dear Freinds , I have Horrible problem at one customer while machine is running everything is fine and all of sudden the CPU stops and Stop LED blinks fast itself indicating overall reset needed. After this we can reset the CPU and reload the program. It works for few days, few months also and suddenly we have this problem again. Can any body suggest what could be faulty powersupply or CPU?. Please shae this type of problem if any body came across, Regards,
Shivaji Patil Posts: 140 Rating: (1)
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5/10/2010 10:12 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	ShiRaPatil Dear Freinds , I have Horrible problem at one customer while machine is running everything is fine and all of sudden the CPU stops and Stop LED blinks fast itself indicating overall reset needed. After this we can reset the CPU and reload the program. It works for few days, few months also and suddenly we have this problem again. Can any body suggest what could be faulty powersupply or CPU?. Please shae this type of problem if any body came across, Regards, Both of them can cause a problem like this. Is there a battery inside? Is it OK?
IBN-Service Posts: 8946 Rating: (999)
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5/10/2010 10:37 AM	Rate (0)
Shivaji Patil Posts: 140 Rating: (1)	Hello, Both the backup batteries are O.K. Powersuplly donot have any error during this instance. Best regards,
Shivaji Patil Posts: 140 Rating: (1)
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5/10/2010 3:42 PM	Rate (0)
naga Posts: 101 Rating: (0)	Dear, Is there any other LED getting ON on CPU. What is the diagnostic buffer saying, some thing like I STACK or Q STACK etc. Vijay
naga Posts: 101 Rating: (0)
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5/11/2010 7:07 AM	Rate (0)
Shivaji Patil Posts: 140 Rating: (1)	Dear Freind, Only BASP Led is on, I have not checked the IStack or Bstack as in my opinion they could be useful incase of stop mode only and not for overall request situation. Information may not be correct at this point in diagnostic bufferes aaswell. Best regards,
Shivaji Patil Posts: 140 Rating: (1)
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5/11/2010 9:27 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	ShiRaPatil Dear Freind, Only BASP Led is on, I have not checked the IStack or Bstack as in my opinion they could be useful incase of stop mode only and not for overall request situation. Information may not be correct at this point in diagnostic bufferes aaswell. Best regards, Is the incoming feeder OK? Sometimes, short interruptions of power supply bring some problems...
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5/11/2010 12:23 PM	Rate (0)
Shivaji Patil Posts: 140 Rating: (1)	DEAR FREIND, I THINK IT IS O.K.AS OTHER INSTRUMENTS DONOT HAVE ANY PROBLEM SO FAR. ONE QUESTION ? IS IT POSSIBLE TO CHANG THE RAM WITH RAM MODULE WITH BATTERY BACKUP TYPE 377? I READ IT SOMEWHERE ABOUT. WILL IT BENEFIT? IN OUR APPLICATION IT IS NOT POSSIBLE TO PUT EEPROM AS TEHERE ARE MANY PROCESS VARIABLES /DBS AND ALL CALCULATIONS ETC. BEST REGARDS,
Shivaji Patil Posts: 140 Rating: (1)
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5/12/2010 8:35 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	ShiRaPatil DEAR FREIND, I THINK IT IS O.K.AS OTHER INSTRUMENTS DONOT HAVE ANY PROBLEM SO FAR. ONE QUESTION ? IS IT POSSIBLE TO CHANG THE RAM WITH RAM MODULE WITH BATTERY BACKUP TYPE 377? I READ IT SOMEWHERE ABOUT. WILL IT BENEFIT? IN OUR APPLICATION IT IS NOT POSSIBLE TO PUT EEPROM AS TEHERE ARE MANY PROCESS VARIABLES /DBS AND ALL CALCULATIONS ETC. BEST REGARDS, You can use a EEPROM! DBs can be moved into the DB-RAM of CPU! You can do so with OB 181 (TEST DB) and OB 255 (transfer datablock from EPROM to RAM). But you have to change your Start-Up OB (i.e. OB20/21/22) a littel bit.
IBN-Service Posts: 8946 Rating: (999)	Last edited by: IBN-Service at: 5/12/2010 8:36 AM
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5/12/2010 10:35 AM	Rate (0)
Shivaji Patil Posts: 140 Rating: (1)	Thanks for suggestion, This CPU is 6ES5928-3UB11, will it support EEPROM module? Best regards,
Shivaji Patil Posts: 140 Rating: (1)
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5/12/2010 4:54 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	ShiRaPatil Thanks for suggestion, This CPU is 6ES5928-3UB11, will it support EEPROM module? Best regards, All CPU 928B support EEprom or EPROM, as far as I know. But remember, to load DB into DB-RAM, you need additional code!
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