Re: [foxboro] OM lists

  • From: "Johnson, Alex P (IOM)" <Alex.Johnson@xxxxxxxxxxxx>
  • To: "foxboro@xxxxxxxxxxxxx" <foxboro@xxxxxxxxxxxxx>
  • Date: Thu, 26 Aug 2010 08:15:03 -0500

Dirk,

B0700AX, The MESH Control Network System Planning and Sizing, guide defines the 
parameter as:

OM_NUM_IMPORT_VARS

   ♦ Total number of entries used to save station addresses for I/A objects to 
minimize 
   Message multicasts.
  ♦ You can use the /usr/local/show_params utility to view the usage of I/A 
objects
   imported.
  ♦ You can use the /opt/fox/bin/tools/som utility (“imp” command) to view the 
names of
   imported I/A objects (for example, compounds).

The filling of the table is a good thing; that means you are minimizing the 
multicasts from the system.

If you can reboot the machine, you can increase the OM_NUM_IMPORT_VARS by 
following the instructions in Application Object Services User’s Guide 
(B0400BZ) for information on setting OS configurable parameters.


Regards,
 
Alex Johnson
Invensys Operations Management
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-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On 
Behalf Of dirk.pauwels@xxxxxxxxxx
Sent: Thursday, August 26, 2010 6:23 AM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] OM lists

I'm not familiar with som/rsom and I would like to find out why the number 
of  OM_NUM_IMPORT_VARS is so high on one of our AW51's.  (last rebooted on 
june 23.)  I could reboot to reset, but I would like to find out what's 
causing it.
Any rsom/som tips? 
( i couldn't find any info on rsom/som in BO193BC, maybe I've been looking 
in the wrong place?) 

Current Station Configuration   FOX CONFIG 001.00

                         Number Free    In-use
CMX_NUM_CONNECTIONS      96     83      13      # of connections
URFS_NUM_CONNECTIONS     96     96      0       # of connections used by 
RFS
OM_NUM_OBJECTS           1250   811     439     # of OM object variables
OM_NUM_CONNECTIONS       90     82      8       # of connections used by 
OM
OM_NUM_IMPORT_VARS       100    9       91      # of OM import variables
OM_NUM_LOCAL_OPEN_LISTS  200    138     62      # of OM local open lists
OM_NUM_REMOTE_OPEN_LISTS 50     49      1       # of OM remote open lists
IPC_NUM_CONN_PROCS       96     86      10      # of IPC connection users
IPC_NUM_CONNLESS_PROCS   150    55      95      # of IPC connectionless 
users

                         Apps   Objs    Attrs
APPLICATION OBJECTS      0      0       0       # of Application Objects

thanks & rgds,
Dirk

 
 
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