Re: [foxboro] Global Variable Connections

Excellent,

That seems to work.  Thanks for that. =20

Sean

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Johnson, Alex P (IPS)
Sent: Wednesday, 28 May 2008 10:41 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Global Variable Connections

This came up not so long ago with another client. It seems that the DM
variables are created with a special version of obj_create() that does
not announce the creation of the variable.

Since the (re)creation is not announced, the CP's OM can't reconnect to
it.

The work around was - are you ready for this? - on reboot:

1) Delete ALMCNTK0AW02 using omdel
2) Create ALMCNTK0AW02 using omcrt

This will cause the variable to be announced to the system.

I've never personally done this, but I've been told that it is working
at another site. I'd suggest trying it on a test system first.


If you happen to have AOS on your system, you might be able to do this
without the delete/create by using aosReconnect. I've never tried it
with a Shared Variable, but it ought to work.

/opt/aos/exe/aosReconnect ALMCNTK0AW02

should do it.


Hope this helps.


Regards,
 =3D

Alex Johnson
Invensys Process Systems
10900 Equity Drive
Houston, TX 77041
713 329 8472 (voice)
713 329 1600 (switchboard)
713 329 1944 (fax)
alex.johnson@xxxxxxxxxxxxxxxx
http://ips.invensys.com =3D


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