[RASMB] XL-I: Resetting Com Port

[Leech, AP]

Hello Titus,

We have exactly the same problem and I am trying to resolve it with
Beckman at the moment. My system is an XL-I new in 2002. The problem
stops vary considerably in frequency - sometimes practically every run,
then at other times months can go by without a stop. Removing the PC
from our network made no difference, and the stops occur at any time
of day or night.

I think the Resetting Com Port messages are a symptom but not the
actual problem, as I can sometimes have many Com Port messages without
a stop, but stops seem more likely if there are many Com Port messages.

One thing I have noticed is that the stops seem to occur more often
after or between interference scans. I haven't had the opportunity to
try running Abs scans only when the problem occurs to see if it is
specific to the interference optics system.

I will post to the board if I come across anything helpful, but as
you know this is an old problem that better heads than mine haven't
managed to solve!

Best regards to all,

Andrew

Titus M. Franzmann wrote:
> Hi,
> 
> my name is Titus Franzmann. I am running the analytical in Johannes 
> Buchners Lab in Munich, Germany.
> 
> I guess this is an old issue, but maybe someone knows the solution to 
> our problem.
> 
> We are running an XL-I which was upgraded from an XL-A several years 
> ago. Attached to the machine is a standard PC. This seems to be the problem.
> 
>  
> 
> When recording IP scans, after an irregular number of scans (can be 
> after 5 or after 400, and any scan number in between) the error message: 
> “COM: Resetting Com Port” appears. In most cases the machine fails to 
> scan. The program does not freeze, I can stop the scan and start an new 
> method. It appears as if the communication gets lost over a certain 
> time-out period.
> 
> I tired to fix this issue with 5 different PCs (PII to AMD Athlon 
> 1700XP) attached to our XL-I, running Win95 and Win98SE, with Beckman XL 
> Software 4.5, respectively. I also made sure that all COM-Port settings 
> are as Beckman suggests, and as well as posted here in the RASMB forum.
> 
> Does anyone know a solution to this issue or do we have to go and buy 
> the Windows XP upgrade, as standard PCs fail to word and the old IBM PCs 
> are no longer available?
> 
>  
> 
> Thank you and best regards from Munich
> 
> Titus
> 
>  
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
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-- 
Dr Andrew Leech                   *  Laboratory Manager
Technology Facility               *  Molecular Interactions Laboratory
Department of Biology (Area 15)   *  Tel   : +44 (0)1904 328723
University of York                *  Fax   : +44 (0)1904 328804
PO Box 373,  York  YO10 5YW       *  Email : apl3 at york.ac.uk