Hafedh Ghodhbani wrote:
I notice a strange malfunction that concerns some of my CP40FT type A
modules. It consists in the following:
* frequently some single CP modules are auto-rebooted.
*sometimes some single CP modules are stopped. I reboot them manually.
*It happened one time that a CP40FT both modules stopped and a total
plant
Shutdown occured
It was reported to Foxboro, But they always asked to change the CP
module!
Recently CAR2000274 was defined. However no feedback yet.
The type of system alarm messages I received last 4 months are the
following:
EHSS 000141 Memory Parity Error - NMI Exception 00006C024868
EHSS 000141 Memory Parity Error - NMI Exception 00006C078425
RAMDSS 000003 COOP IOBUS Fail FBM I/O FAILURE. 00006C073595
FTXSS 000090 Modules failed to sync up prior to mem to mem
00006C079819
EHSS 000141 Memory Parity Error - NMI Exception 00006C024868
FTXSS 000080 Memory violation occured 00006C073595
FTXSS 000080 Memory violation occured 00006C078463
Have someone experienced or resolved a similar malfunction?
I'm sorry to say that I have seen this as well. In my experience, a single
CP40 will spontaneously reboot every year or two with the 'Memory Parity'
error. I have ten of them, and I have seen it four times in the last two
years. When I called TAC, they offered to replace the CPs, but said that as
long as they successfully reboot, nothing is wrong.
The documentation says that this happens, and you should live with it.
Check out HH549, CARS 4171, 4174, 6125, 5830, 6640 and so on. (go to the
CSC website and search on "memory parity" - the number of cars will scare
you!)
I am tempted to put in a long rant about Foxboro's other problems here, but
I think we have all heard enough of those.
-Joe
Joseph A. Markham
3M Company
Reverse Supply Chain Services
10746 Innovation Road
3M Cottage Grove Center Bldg 145-2
Cottage Grove, MN 55016-4600
Tel: 651-768-2893
Fax: 651-458-2017
"Ghodhbani, Hafedh"
<hafedh.ghodhbani@bg- To: Foxboro DCS Mail List
group.com>
<[EMAIL PROTECTED]>
cc: (bcc: Joseph A.
Markham/US-Corporate/3M/US)
09/26/2001 05:39 AM Subject: CP40 malfunction
Please respond to
"Foxboro DCS Mail
List"
Gents,
I notice a strange malfunction that concerns some of my CP40FT type A
modules. It consists in the following:
* frequently some single CP modules are auto-rebooted.
*sometimes some single CP modules are stopped. I reboot them manually.
*It happened one time that a CP40FT both modules stopped and a total
plant
Shutdown occured
It was reported to Foxboro, But they always asked to change the CP module!
Recently CAR2000274 was defined. However no feedback yet.
The type of system alarm messages I received last 4 months are the
following:
EHSS 000141 Memory Parity Error - NMI Exception 00006C024868
EHSS 000141 Memory Parity Error - NMI Exception 00006C078425
RAMDSS 000003 COOP IOBUS Fail FBM I/O FAILURE. 00006C073595
FTXSS 000090 Modules failed to sync up prior to mem to mem
00006C079819
EHSS 000141 Memory Parity Error - NMI Exception 00006C024868
FTXSS 000080 Memory violation occured 00006C073595
FTXSS 000080 Memory violation occured 00006C078463
Have someone experienced or resolved a similar malfunction?
What is the root-cause of this?
How can it be resolved?
Is there a chance that another plant shutdown take place due to CP40FT
Shutdown of both modules?
Thanks
Hafedh Ghodhbani
Control and Instrument Engineer
British Gas Group
Hannibal Gas Plant Tunisia
ph 00 216 4 259 250
Fax 00 216 4 259 449
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