Re: [foxboro] OMI on DM

We use OMI with DM/Solaris Alex, mostly using the SENDCONF command, but 
also SENDMSG. The initial reason we wanted to move away from OMI was (way 
back in  the day) because an AW could only support a limited number of 
message files (13 comes to mind, it was small anyway) and we ended up with 
more equipment units than available message files. Our solution is a 
wholly home grown message handler, based in the main on some clever 
sequence block code (IND/DEP blocks with HLBL) which we developed some 
years back with lots of help from our local Foxboro support folks (thanks 
Baljit, you know who you are!!).
The thing that breaks my OMI is the use of text (part of the same DM 
graphic file that contains the OMI message group) which changes content 
based on the triggered read string variable. I.E. the OMI was working fine 
on my displays until one day I added text to show what batch (IA Batch) 
was running in a vessel, (just the batch name and phase being executed 
popped into text strings), after that I get times when OMI messages just 
dont appear in the message group.

Clear as mud, I know, :-)



Regards,
Gabriel.




"Johnson, Alex P (IOM)" <alex.johnson@xxxxxxxxxxxxxxxx> 
Sent by: foxboro-bounce@xxxxxxxxxxxxx
06/11/2009 13:07
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Re: [foxboro] OMI on DM






Gabriel,

Do you really use OMI (SENDMSG to OMI Server to DM/FV)?

From your message, it appears that you use the DM/FV triggered read of a 
string variable which is independent of OMI. This functionality is 
supported under Windows.

Just curious, as mentioned I've never used OMI.


Do you use DM or FV? Solaris or Windows.

What is your replacement strategy?

Regards,
 
Alex Johnson
Invensys Process Systems
10900 Equity Drive
Houston, TX 77041
+1 713 329 8472 (desk)
+1 713 329 1600 (operator)
+1 713 329 1944 (SSC Fax)
+1 713 329 1700 (Central Fax)
alex.johnson@xxxxxxxxxxxxxxxx

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] 
On Behalf Of Gabriel ODwyer
Sent: Friday, November 06, 2009 4:02 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] OMI on DM

I use OMI a lot and have a similar problem where I have text content 
driven by .MSGNO and .SN000X parameters, but my problem is sort of the 
inverse of yours in that sometimes the content of the OMI message is not 
visible, but may become visible if the display is refreshed/updated, - 
sometimes, it doesent happen to all displays all the time. Its frustrating 

to the operations personnell to say the least. We have a plan to move away 

from the OMI driven message handling and move to a messsage handling 
system we built ourselves.
Regards,
Gabriel.





 
 
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