Re: [foxboro] System getting hanged - only 3 ains
- From: Hizamri Johari <hizamri@xxxxxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Fri, 25 Apr 2014 10:45:30 +0800
Dear Rakesh...
I ONLY noticed on 3 AIN Blocks that we were testing..
I assume ALL Blocks will have the same effect..
But if you have GPS time sync, the DCS time should not deviate more than
30 seconds from GPS time... And time-sync normally occurs at mid-night
every night...
God knows best..
Best regards..
Hizamri
On 4/25/2014 10:22 AM, RAKESH DASH wrote:
> Hizamri,
> When you say blocks, do you mean logic blocks ?
> Can we avoid this negative time stamp in synchronization ?
> Any learning's from past of similar issue ?
> Regards,
> Rakesh
> On 25-Apr-2014 7:40 AM, "Hizamri Johari" <hizamri@xxxxxxxxxxxxx> wrote:
>
>> Dear Rakesh
>>
>> I have tested this on a test station...
>>
>> I changed the time backward to a few minutes.. I notice the blocks
>> become not responsive until the original time is reached..
>>
>> May be the DCS stations time were faster about 3 minutes from GPS time..
>>
>> God knows best..
>> Best regards..
>> Hizamri
>>
>>
>> On 4/25/2014 1:24 AM, RAKESH DASH wrote:
>>> Hi,
>>> It so happened that all controllers & workstation lost GPS signal from
>>> AW1001 workstation. This happened at 00:00:00 hrs. During this period
>>> the historian got hanged & the operator workstation became very slow. The
>>> synchronisation was back at 00:03:00 & historian came back to normalcy
>>> automatically by 00:10:00. Can someone suggest if GPS can cause such sort
>>> of problem ?
>>> Please share ur views. I m stuck & don't know how to avoid it happening
>>> again.
>>> Rgds,
>>> Rakes Dash
>>>
>>>
>>>
>>>
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>>
>>
>> _______________________________________________________________________
>> This mailing list is neither sponsored nor endorsed by Invensys Process
>> Systems (formerly The Foxboro Company). Use the info you obtain here at
>> your own risks. Read http://www.thecassandraproject.org/disclaimer.html
>>
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>>
>
>
>
> _______________________________________________________________________
> This mailing list is neither sponsored nor endorsed by Invensys Process
> Systems (formerly The Foxboro Company). Use the info you obtain here at
> your own risks. Read http://www.thecassandraproject.org/disclaimer.html
>
> foxboro mailing list: //www.freelists.org/list/foxboro
> to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
> to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave
>
>
_______________________________________________________________________
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Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
foxboro mailing list: //www.freelists.org/list/foxboro
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- » Re: [foxboro] System getting hanged - only 3 ains - Hizamri Johari
