EPICS Controls 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  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: AW: AW: Connection to Siemens S7 PLC
From: Rekow Jens <[email protected]>
To: Konrad Gajewski <[email protected]>
Cc: [email protected] <[email protected]>
Date: Mon, 26 Mar 2012 13:49:09 +0200
Hi Konrad,

we only needed to change the Step7 program, we did not need a patch or anything else.

Regards,
Jens



> -----Ursprüngliche Nachricht-----
> Von: Konrad Gajewski [mailto:[email protected]]
> Gesendet: Freitag, 23. März 2012 12:59
> An: Rekow Jens
> Cc: [email protected]
> Betreff: Re: AW: Connection to Siemens S7 PLC
> 
> Hi Jens,
> 
> Thank you for your update. Can you give me some details - was it a Step
> 7 program that you had to change or have you got a patch from Siemens?
> 
> Btw, I'm trying to connect S7-200 PLC via serial line using asyn Modbus
> driver and Siemens Modbus library. So far it's not working (the
> communication works fine, I get the error message from the slave, so I
> hope I can fix it soon).
> 
> Best regards,
> Konrad.
> 
> 
> 23 mar 2012 kl. 12:12 skrev Rekow Jens <[email protected]>:
> 
> > This topic is a few weeks old already but for your information,
> sometimes 'All is well that ends well':
> >
> > Our connection handling problem is solved after some help of the
> Siemens support. Interfacing with the SLS S7 driver to a Siemens PLC
> directly connecting to a CPU315-2 PN/DP works fine now.
> >
> > The problem we had was a timing issue. Most likely the PLC tried to
> initialize functions to quickly after booting. That made the TCON
> function got locked sometimes.
> >
> > HTH,
> > Jens
> >
> >
> >
> >> -----Ursprüngliche Nachricht-----
> >> Von: [email protected] [mailto:tech-talk-
> >> [email protected]] Im Auftrag von Rod Nussbaumer
> >> Gesendet: Mittwoch, 22. Februar 2012 18:20
> >> An: Konrad Gajewski
> >> Cc: [email protected]
> >> Betreff: Re: Connection to Siemens S7 PLC
> >>
> >> At TRIUMF, we are using our own driver to talk to 400-series Siemens
> >> PLCs. It uses asyn, and was modeled after Mark Rivers' modbus PLC
> >> driver. The underlying communications protocol is the Siemens
> >> FETCH/WRITE protocol over TCP/IP.
> >>
> >> Rod Nussbaumer
> >> ISAC Controls, TRIUMF
> >> Vancouver, Canada
> >>
> >>
> >> Konrad Gajewski wrote:
> >>> Hello everybody,
> >>>
> >>> I'm new to EPICS and I am planning to control Siemens Simatic S7-
> 200
> >>> PLC. I have looked in EPIC documentation and found at least two
> ways
> >> to
> >>> connect the PLC:
> >>>
> >>> 1. via MODBUS (Asyn) driver over the serial connection (using
> Siemens
> >>> MODBUS RTU library)
> >>> 2. using S7plc driver via TCP/IP and a CP 243-1 Ethernet module.
> >>>
> >>> The programming of the PLC is done using Step-7 Micro/WIN V4.0.
> >>> Unfortunately I can't open the example STEP 7 PLC project (for
> S7plc
> >>> driver) in Step-7 Micro/WIN.
> >>>
> >>> Do you have any experience with such a configuration or maybe with
> >>> S7-1200? Are there any better options?
> >>>
> >>> Thanks,
> >>> Konrad
> >>>
> >
> >
> >



References:
Connection to Siemens S7 PLC Konrad Gajewski
Re: AW: Connection to Siemens S7 PLC Konrad Gajewski

Navigate by Date:
Prev: RE: about ram socket help michael.abbott
Next: RE: about ram socket help Mark Rivers
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: AW: Connection to Siemens S7 PLC Pavel Masloff
Next: norgren valve island Pierrick Hanlet
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  <20122013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 18 Nov 2013 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·