[foxboro] CP40A Custom Jumbo Image Support????
- From: "Sieling, Marcel" <msieling@xxxxxxxxxxx>
- To: "'foxboro@xxxxxxxxxxxxx'" <foxboro@xxxxxxxxxxxxx>
- Date: Thu, 24 Oct 2002 05:34:43 -0400
Hi,
sorry for answering a bit late.
[Jumbo Image]
Terry wrote:
>I believe this was a custom to allow the CP to use all 4MB of memory =
for =3D
>control blocks. A normal CP40 has 4MB onboard but only 2MB is usable =
=3D
>for control blocks.
Not quite correct. There is a limit in the normal CP image that only =
2000
Compound/Block objects can reside in a CP. Each Compound and each Block
cunsumes one entry in that list. If that list is full, you get an error
message "Cannot add Compound/Block" or similar. Usually this limit is =
never
exceeded because other limits (memory or CPU time) are reached first. =
But if
you have large numbers of DATA blocks (REAL, BOOL, LONG, STRING) it is
possible to get at this limit without really loading the CP, because =
DATA
Blocks are not executed, they are just storage places in CP memory. =
Now, the
Jumbo Image simply extends this Compound/Block List limit up to 4000.
Sounds good, but there is a big problem: Since I/A 6.2.1 the Jumbo =
Image
support is discontinued in the standard I/A Software and we discovered
problems on some customer sites already because of this discontinueing. =
So
simply installing the old CP opsys file does not fix this issue (You'll =
get
occasionally memory violation reboots, not very nice. ;-)
Summary: Forget about the Jumbo Image, it is not existing for current =
I/A
versions.
Best regards -
Marcel Sieling
Systems Technologies
Invensys Systems GmbH
Heerdter Lohweg 53 - 55
40549 Duesseldorf
Germany
Tel.: +49 (0)30-267-15542
Tel.: +49 (0)211 5966-171
Fax: +49-(0)172-50-2673077
Mobile: +49-(0)172-2673077
Email: <mailto:msieling@xxxxxxxxxxx>=20
Homepage: <http://www.invensys-process-systems.de>=20
Visit my private (german) homepage: <http://www.powerslider.de>=20
-----Urspr=FCngliche Nachricht-----
Von: Deo, Terry [mailto:Terry.Deo@xxxxxxxxxxxx]
Gesendet: Freitag, 4. Oktober 2002 00:45
An: foxboro@xxxxxxxxxxxxx
Betreff: Re: [foxboro] CP40A Custom Jumbo Image Support????
If you don't know then you probably don't have one.
I believe this was a custom to allow the CP to use all 4MB of memory =
for =3D
control blocks. A normal CP40 has 4MB onboard but only 2MB is usable =
=3D
for control blocks.
Regards,
Terry Deo
-----Original Message-----
From: Loupe, Rory (RJ) [mailto:RJLoupe@xxxxxxx]
Sent: October 03, 2002 6:41 PM
To: 'Foxboro - Cassandra'
Subject: [foxboro] CP40A Custom Jumbo Image Support????
Can someone shed some light as to what a Jumbo Control Image is?
Thanks,
Rory Loupe
Customer Advisory
CP40A Custom Jumbo Image Support
September 29, 2002
This notification pertains to you if you have CP40A running a custom =
=3D
Jumbo
Control Image.
Notice
The CP40A Jumbo Control Image, QC 9516 -D or QF1000784 running at =
V6.1.2 =3D
or
earlier will=3D20
only be supported up to Host Version 6.2.1.=3D20
Summary
Customers wishing to upgrade their systems to later versions have two
options
1) Maintain Host at version V6.2.1 supporting the CP40A jumbo
stations, and upgrade additional Hosts supporting stations with =3D
non-jumbo
images.=3D20
Note: Hosts at V6.2.1 can co-exist with hosts with later
version on the same system. That means that messaging structures, such =
=3D
as
Compound:Block.Parameter, can be shared, displayed and understood =
across
multiple host domains which could be all running different Versions.
2) If you wish to upgrade from the CP40A, an Advantage path is
available to move to a CP60. The CP60 will not only provide the same
functionality as the Jumbo Control Image, but also supports new block =
=3D
types,
new 200 Series FBMs and provides additional standard features not =3D
available
with the CP40A.=3D20
Action=3D20
If you wish to move to a CP60, your local field service organization =
can
help you plan your system upgrade to help minimize any impact on your
process.=3D20
Rory Loupe
The Dow Chemical Company
LHC-3
P.O. Box 150, Building 6801 21255 highway 1,
Building 6801
Plaquemine, LA 70765-0150 USA Plaquemine, LA 70764 USA
Phone: 225.353-6409 Fax: 225.353.6968
E-mail: RJLoupe@xxxxxxx
=3D20
=3D20
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