FYI you can image update to the same version, you do not have to install a
newer version.
Per our discussion we are using image update to defrag the FCP270. Of the 3
methods to reboot/restore an FCP270
Init and Loadall/Deploy
Reboot from checkpoint file
Image Update
Image update has the shortest downtime for the FCP270.
David A Johnson
Principal Project Application Engineer
Customer Projects & Services
Industrial Automation Business
Foxboro by Schneider Electric
D 5082034414
M 6173652081
MS TEAMS DAVID.JOHNSON@xxxxxx
E DAVID.JOHNSON@xxxxxx
Alt E DAVID.JOHNSON@xxxxxx
Customer Care Contact Us
70 Mechanic St
Foxboro, MA 02035
United States
24/7 support. Mobile catalog. Access to expert help.
General
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx <foxboro-bounce@xxxxxxxxxxxxx> On Behalf Of
Goldie, Shaun S
Sent: Friday, April 12, 2024 3:59 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] FCP270 memory fragmentation
[External email: Use caution with links and attachments]
________________________________
Thanks Angel and David
The offending IND block now has a CSIZE of 9K2 after I split out one of the
functions The FCP270 MAXMEM is now at 18K after moving one compound out While
the problem existed MAXMEM (largest segment) was getting down to 10K most
notably while ICC was open This has been very helpful and gives me something to
work with next week, If there is a newer version than 920055 ill try image
update first Definitely will create a script to monitor them all and consider
CSPACE Shaun
** I do have to take this opportunity to give development a nudge I have 9
FDC280+IBk-s which are un-suitable for our routed PLC networks hence im being
forced to stretch the limits of the older CP+IBk-s
From: foxboro-bounce@xxxxxxxxxxxxx On Behalf Of David Johnson
Sent: Saturday, 13 April 2024 06:03
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] FCP270 memory fragmentation
Check the MaxMem parameter on the fcp270 station block. Once this value gets
below 32k due to fcp270 memory fragmentation you run the risk of not being able
to install a sequence block whose size can be up to 32k. MaxMem defaults to 64k
after
Check the MaxMem parameter on the fcp270 station block. Once this value gets
below 32k due to fcp270 memory fragmentation you run the risk of not being able
to install a sequence block whose size can be up to 32k.
MaxMem defaults to 64k after a reboot. Over time it will drop as sequence block
edits are performed. This is due to the fact that seq blocks are deleted then
added back when installed from ICC or Control Editior. This action creates
holes in the memory that will eventually result in memory fragmentation.
You must reboot (both modules at the same time if fault tolerant) to reset the
MaxMem back to 64k. I believe image update (cold restart or warm restart) will
also defrag an fcp270.
Using CSpace is a way to reserve additional memory for the seq block so that it
can be added back to the same memory location when modified to help prevent
fragmentation.
Regardless of memory fragmentation you should keep an eye on seq block size
since 32k is the maximum allowed.
David A Johnson
Principal Project Application Engineer
Customer Projects & Services
Industrial Automation Business
Foxboro by Schneider Electric
D 5082034414
M 6173652081
MS TEAMS DAVID.JOHNSON@xxxxxx<mailto:DAVID.JOHNSON@xxxxxx>
E DAVID.JOHNSON@xxxxxx<mailto:DAVID.JOHNSON@xxxxxx>
Alt E DAVID.JOHNSON@xxxxxx<mailto:DAVID.JOHNSON@xxxxxx>
Customer Care Contact Us
70 Mechanic St
Foxboro, MA 02035
United States
24/7 support. Mobile catalog. Access to expert help.
General
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx<mailto:foxboro-bounce@xxxxxxxxxxxxx>
<foxboro-bounce@xxxxxxxxxxxxx<mailto:foxboro-bounce@xxxxxxxxxxxxx>> On Behalf
Of Goldie, Shaun S
Sent: Thursday, April 11, 2024 11:16 PM
To: foxboro@xxxxxxxxxxxxx<mailto:foxboro@xxxxxxxxxxxxx>
Subject: [foxboro] FCP270 memory fragmentation
[External email: Use caution with links and attachments]
________________________________
All knowing list
I made a small edit to an IND block and got E35 error not enough memory when I
compiled it I temp solved the problem by deleting a development compound with
100 blocks This FCP270 has been in more than 10 years and has reached block
limit before, at the moment it has about 3K7 blocks.
The last time this CP was full I moved a compound with 300 blocks and a large
IND into a FCP280
Can anybody confirm that a reboot will improve the memory situation or whether
it takes a load_all
Shaun
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responsible for delivering the message to the intended recipient, be advised
that you have received this message in error. Any dissemination, copying, use
or re-transmission of this message or attachment, or the disclosure of any
information therein, is strictly forbidden. BlueScope Steel Limited does not
represent or guarantee that this message or attachment is free of errors, virus
or interference.
If you have received this message in error please notify the sender immediately
and delete the message. Any views expressed in this email are not necessarily
the views of BlueScope Steel Limited
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