Re: [foxboro] XP Workstations - 72 day lockup?
- From: David Johnson <drjohn@xxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Mon, 28 Jan 2008 12:29:16 -0600
OK,
I haven't heard of that, but I sort of believe you because of the following...
this has nothing to do with XP, BUT there is a known bug in some of
the Allen Bradley CNB(R) modules that causes them to freeze every
70.96 days. There is a Rockwell Note on this problem P155242786
there is another for a CNB(R) failing after 497 days Rockwell Note
A120646851 both from the Rockwell Knowledge Base. An AB firmware
upgrade fixes the problem. Rumor has it that some number gets
exceeded by a free running counter. ( I can't confirm this.)
So while I haven't heard of XP failing after this length of time, it
appears there is a magic number that needs to get reset after ~71
days on some items.
Perhaps you're not crazy after all, and even if you are, a little
paranoia never hurt anybody.
Regards,
David
At 10:35 AM 1/28/2008, you wrote:
>List Gurus,
>
>Let my start by saying that this is a fishing expedition. I have heard
>second hand from a sister plant that they were told by someone in
>Foxboro (you know this is going to be good when it starts out this way)
>that the 8.x XP workstations will lock up every 72 days and require a
>reboot, and that this is a problem with all the XP 8.x systems. Just
>FYI - this problem has been seen on XP workstations on other control
>platforms at our sister plants.
>
>Has anybody seen this with the Foxboro XP workstations, or have any
>information on it? We have had XP AW70s here since July, and I think
>that they have run longer than 72 days at a stretch, but maybe not.
>
>Thanks,
>Gaylon Hicks
>TVA - Browns Ferry
>
>
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