You should give consideration to moving to AIM*. It contains migration
utilities that preserve the customer's data and configuration information.
Regards,
Alex Johnson
10707 Haddington
Houston, TX 77043
713.722.2859 (office)
713.722.2700 (switchboard)
713.932.0222 (fax)
[EMAIL PROTECTED]
-8362
Fax:610-364-8211
[EMAIL PROTECTED]
-Original Message-
From: Johnson, Alex (Foxboro) [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, September 27, 2001 9:25 AM
To: Foxboro DCS Mail List
Subject:RE: Legacy Historian Upgrade
:RE: Legacy Historian Upgrade
And now a customer perspective...
Pros of AIM*Historian:
1. You can modify it while it is running.
2. You can run it on the NT platform as well as AW51, and you
can set
up remote collectors on both NT and Unix
:RE: Legacy Historian Upgrade
Re: Loading
The load is proportional to the number of changes and the update
rates.
What is your setting for fastest_rsr in /opt/fox/ais/bin/foxapi.cfg?
This
controls how often updates are sent from the CP to the historian
We have migrated our legacy historian several times using saveh50 and
loadh50. It actually works pretty well.
The saveh50 utility unloads the Informix data and table structure to a
series of sql scripts and files of ascii data. There is not a lot of
interaction once the process starts. It
Message-
From: Lowell, Tim: [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, September 27, 2001 10:04 AM
To: 'Foxboro DCS Mail List'
Subject:RE: Legacy Historian Upgrade
Alex,
We have configured most flows to update at 10 seconds, and most
I am familiar with the Legacy Historian but I was recently at a plant where
they had the new AIM* Historian. It was installed on a Sun machine. I
really like the fact that you can change its configuration without shutting
it down. This allowed us to tighten many deadbands specifically for the
Re: foxpai.cfg and fastest_rsr
There is a brief description of fastest_rsr in the QF990084 and how you can change
it. I have used this variable with FoxAPI. The deafult value is 1 (means 1/2 seconds),
every steps means 1/2 sec, i.e., if fastest_rsr = 10, that means 5 seconds. I am not
sure if
