Re: [foxboro] AIM OPC Server
- From: "Ken Heywood" <kheywood@xxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Thu, 3 Mar 2005 11:13:17 -0500
I'm always game for free advice. Application tunneling always makes life =
easier. But, it's kind of perverse when you have many workstations that =
expect to use the benefits of named OPC object access sourced from all =
kinds of devices, and you need to load the client apps for all the =
devices on every workstation. It's akin to telling Internet users that =
they can display any webpage as long as they have ActiveX loaded.
Barring any DCOM issues, 3 or 4 NIC cards shouldn't present a problem =
... I think. No?
* K
-----Original Message-----
From: Johnson, Alex (Foxboro) [mailto:ajohnson@xxxxxxxxxxx]=20
Sent: Wednesday, March 02, 2005 2:02 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] AIM OPC Server
Free advice?
Put the AIM*OPC DA Server on the client machines and use NetAIM*API to
connect to the source AW (AW70 or AW51). This is equivalent to =
Matrikon's
"OPC Tunnelling".
Why do it?
Easy - the setup is much simpler - no DCOM.
Worth the time and money, I promise.
Regards,
=20
Alex Johnson
Invensys Process Systems
Invensys Systems, Inc.
10707 Haddington
Houston, TX 77043
713.722.2859 (voice)
713.722.2700 (switchboard)
713.932.0222 (fax)
ajohnson@xxxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] =
On
Behalf Of Ken Heywood
Sent: Wednesday, March 02, 2005 12:26 PM
To: Foxboro Freelist (E-mail)
Subject: [foxboro] AIM OPC Server
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I am planning an AIM OPC Server to serve data to two separate networks. =
=3D
The box will have 3 NIC cards; 1 for I/A, and one each fro each IT =3D
network. Are there any special AIM restrictions? Network addressing or =
=3D
network connection issues? Has anybody done this? Thanks.
=3D20
* K
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