You can historize station loading. We have done it. FoxDoc B0193AX,
chapter 97 (Station Block) gives an excellent description of all the various
Station parameters that you can trend. The address is
CPLBUG_STA:STATION.<parameter>. Is that what you mean? I'm not sure about
any of the other stuff, such as all the counters you can access via the PERF
button on Sys_Mgmt. I don't believe those are historizable, but I could be
wrong.
I hope to see you all at the Conference. I'm with Bo, I think we need
online upgrades more than anything else by a long shot. We're in a
situation where even during a complete refinery outage, we have to keep
boilers running, so we don't really ever have a COMPLETE outage. At least
now we can run one node at 6.1, and the other at 6.2, so that is an
improvement, but I'd certainly rather have all stations at the same release
level if I could. This is going to require an enormous effort on Foxboro's
part, since it will force them to undo engineering decisions made at the
very earliest stages of I/A development, so it is imperative we show
solidarity on this issue.
I'm glad to hear that Foxboro is revamping their development process. My
recent experience has been less than encouraging, especially with FoxHistory
1.2 and FoxView/FoxDraw 99.2. Both of these products were more or less dead
on arrival. Our local service people have told us to not bother loading
FoxView/FoxDraw 99.2 at all. We are staying at 99.1, which is working
pretty well. I think it is a travesty that the development group pours who
knows how many person-hours into a release, and the service group loads it a
few times, and it's so bad, they tell all their other customers not to load
it. It sounds like Foxboro feels the same way, and they are trying to fix
it. I hope that is true.
I didn't have any choice with FoxHistory 1.2, since we had already bought it
when I took the job. It was quickly replaced with 1.2B, then 2.0, then
AIM*Historian 2.5, all of which have had either major problems or severe
limitations. AIM*2.5 has been pretty good for the most part, with some
minor irritations, and the usual lack of some important features that I have
grown used to over the years in all Foxboro historian packages. Now
AIM*Historian 3.0 is out. I don't know if it's any better, since I have not
managed to obtain a copy of it. I would echo the person who wished Foxboro
would release upgrades to customers without us having to beg and plead.
See you next week.
Tim
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