Re: [foxboro] PI Server to I/A
- From: "William C. Ricker" <wcricker@xxxxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Fri, 23 Jan 2004 10:46:53 -0500
Also, note that there is a fault tolerant version of the PI
software. It connects the NT PI Server to 2 IA stations.
Switching from the failing IA station to the backup is quick
and automatic. Internally, monitoring involves a block or two
located in a CP.
I was part of a group that started up a very early version in
2002 (maybe the first redundant PI on an IA link). The startup
went quite cleanly, and it has been operating since, as I
understand, quite without problems.
William C. Ricker
FeedForward, Inc.
Marietta, GA, USA
wcricker@xxxxxxxxxxxxxxx
770-426-4422
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx
[mailto:foxboro-bounce@xxxxxxxxxxxxx]On Behalf Of MUGARTET@xxxxxxxxxxxxx
Sent: Friday, January 23, 2004 7:10 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] PI Server to I/A
Jaime,
If you have a second AW on the node you can install de PI interfase on =
it, and keep it off-line. When you shut down the "main" AW (the one with =
the PI-IF running) you start the "spare". The loss of data should be =
minimum. Check with the PI representative for license issues, but I =
think it shouldn't be a problem since you are always using one IF at a =
time.
Regards,
Mart=EDn
-----Mensaje original-----
De: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]En
nombre de Jaime Claramunt R. (Inforsa)
Enviado el: Viernes, 23 de Enero de 2004 09:03
Para: foxboro@xxxxxxxxxxxxx
Asunto: [foxboro] PI Server to I/A
Hi list,
Does anybody have a PI Server connected to Nodebus ? is it possible ?
We have a PI service running inside one AW51, and then connected to our =
LAN
through 2nd ethernet port.=20
The issue is when this station is down (maintenance or shutdown or =
reboot)
all our process data (10 processors) is lost. Today is becomming a big =
issue
because we summarize this data for daily reports...you canimagine the =
phone
ringing from big boss when there are some "extrange" values ...
Thanks
Jaime Claramunt
INFORSA Paper Mill
CHILE
=20
=20
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