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 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
<== Date ==> <== Thread ==>

Subject: Re: s7plc more than one 240-byte PDU
From: "Zimoch Dirk (PSI)" <dirk.zimoch@psi.ch>
To: Paul Sichta <psichta@pppl.gov>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Fri, 20 Oct 2017 17:36:01 +0000
I don't know either. Perhaps the PLC can't do it. The PLC guys will know.

Dirk

Am 20.10.2017 um 19:32 schrieb Paul Sichta <psichta@pppl.gov>:

OK, thanks I'll see what the PLC guys says about that.  That was my first thought, but then I didn't see how on the PLC side to direct the send-block mechanism to an ipaddr:port .


-ps


On Fri, Oct 20, 2017 at 1:24 PM, Zimoch Dirk (PSI) <dirk.zimoch@psi.ch> wrote:
Hello Paul,

If you cannot increase the block size (the driver has no limit on this but maybe the PLC) you can have two blocks on the PLC running on different ports. To the IOC this would look like two devices.

Dirk

Am 20.10.2017 um 19:18 schrieb Paul Sichta <psichta@pppl.gov>:

I have been using s7plc driver for years with one SND and one RCV block on the PLC.  Now, we need to send more data than can fit in the (max size) 240-byte block.  How can I send more data to EPICS?  

Regards,
-ps



References:
s7plc more than one 240-byte PDU Paul Sichta
Re: s7plc more than one 240-byte PDU Zimoch Dirk (PSI)
Re: s7plc more than one 240-byte PDU Paul Sichta

Navigate by Date:
Prev: Re: s7plc more than one 240-byte PDU Paul Sichta
Next: Question about the module named caffi.ca lzf neu
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
Navigate by Thread:
Prev: Re: s7plc more than one 240-byte PDU Paul Sichta
Next: Re: s7plc more than one 240-byte PDU Maurizio Montis
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
ANJ, 22 Oct 2017 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·