Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020 
<== Date ==> <== Thread ==>

Subject: Re: StreamDevice processing issue
From: "Davis, Mark via Tech-talk" <tech-talk@aps.anl.gov>
To: "Lucock, Richard M" <Richard.Lucock@ukaea.uk>, "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Mon, 18 Mar 2019 14:28:02 +0000
Hi Richard,

The turbopump is an Edwards STP-iX3006.  The serial/Ethernet server is a 
Moxa NPort 6450.

Mark



Mark Davis NSCL/FRIB Control Systems Software Engineer davism50@msu.edu
On 3/18/2019 4:57 AM, Lucock, Richard M wrote:
> Hi,
>
>> I am working on a StreamDevice interface for an Edwards STP 
>> turbomolecular pump and am having a problem with processing of one of 
>> the longer replies.
>
>>
>> The problem appears to be that the ability to match a sequence of 
>> bytes for the "in" command when the bytes span multiple packets does 
>> not work for protocols that do not start with an "out" command (i.e. 
>> those linked to "I/O Intr" records).
>
>   Is this the SCU1600 controller ? We have a number of them running. I
> did have a problem with the controller occasionally delaying parts of
> the longer responses (resulting in packet splitting) but I found that
> a ReadTimeout of 150ms did the trick for us (100ms was just on the
> edge). Other than that, I've had no problems using the controller.
>
> Cheers,
>        Richard
>


References:
StreamDevice processing issue Davis, Mark via Tech-talk
Re: StreamDevice processing issue Lucock, Richard M via Tech-talk

Navigate by Date:
Prev: RE: drvAsynIPPort Not receiving broadcast UDP [SEC=UNCLASSIFIED] Mark Rivers via Tech-talk
Next: Re: StreamDevice processing issue Davis, Mark via Tech-talk
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020 
Navigate by Thread:
Prev: Re: StreamDevice processing issue Lucock, Richard M via Tech-talk
Next: Are there EPICS users in Max Planck Institutes? Heinz Junkes via Tech-talk
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020 
ANJ, 18 Mar 2019 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·