Re: [foxboro] Siemens S7 connected with I/A
- From: "Redmond, Sean S" <Sean.Redmond@xxxxxxxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Thu, 24 May 2007 15:57:57 +1200
I would prefer to use Modbus, because modbus is easier for ME to fault
find. You can plug in a laptop and listen to the transactions flying
past. The transactions are simple to diagnose. Even ethereal can decode
them if you use Modbus TCP/IP. I have not been able to do this with
Profi. That is my opinion anyway. Profi has its good points too, but I
don't know what's going on inside. Although when I just spelled check
my email modbus came back as mudbugs and profi as profit. Hmmmm
Regards
Sean
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Weiss, Andreas
Sent: Wednesday, 23 May 2007 7:52 PM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] Siemens S7 connected with I/A
Hi,
which protocol would you prefer if you had to connect a Siemens S7 PLC
with an I/A DCS? Profibus or Modbus?
We use both at this time and it isn't a engineering problem. It's more
that the S7 is new for us and we have the choice.
Regards,
Andreas
Ineos Cologne
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