Re: [foxboro] P92 Quad KVM Extension

  • From: "Doucet, Terrence" <tdoucet@xxxxxxxxxxxxxxxxxx>
  • To: <foxboro@xxxxxxxxxxxxx>
  • Date: Sun, 15 Feb 2009 10:28:48 -0500

Kevin,
 
A method that I have seen used is a combination of CAD filtering (for display) 
and Alarm Printer per Alarm area.  The noise of the dot-matrix printer is used 
to alert the operator of a new alarm. Certainly not the greatest scheme and if 
the Operator leaves the CRT area briefly, he must check the CAD when he 
returns. CAD is used to ACK. 
 
Not a critical process and fairly slow reaction times, so this worked OK.  
Flashing button is an annoinance.
 
Terry
 
 
________________________________

From: foxboro-bounce@xxxxxxxxxxxxx on behalf of Kevin Fitzgerrell
Sent: Sat 2/14/2009 8:49 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] P92 Quad KVM Extension



Thanks Alex!
I'd gotten a presentation before MM was released and I'm not sure the
presenter was entirely clear on what it would and would not do.

Looks like it's CAD filtering for me then.

Cheers,

Kevin

On Sun, Feb 15, 2009 at 4:56 AM, Johnson, Alex P (IPS) <
alex.johnson@xxxxxxxxxxxxxxxx> wrote:

> Kevin,
>
> Re: For the smaller control stations where I don't have a central
> control room I'm going to try the V8.x alarm management software and
> direct alarms to specific displays (at least that's the plan).
>
>
> Kevin, the Message Manager doesn't do what you think it does.
>
> The MM subscribes to the messages from the CPs and relays them to a
> large number of destinations, but there is only one such destination per
> WP/AW.
>
> That is, the messages received by a process whose name I forget and are
> stored in the Alarm Manager's database. This this database is shared by
> all Alarm Managers in the WP.
>
>
> CP            WP
> CP ==> MM ==> WP
> CP            WP
>
>
> In the WP:
>
>                                            AM
> Msg -> <rcvProc> -> MsgDB -> AlmSrvrTask -> AM
>                                            AM
>
> So, he MM can't do what you are saying, it can't send the message to a
> DM (or its associated AM instance). They go into the message database
> and are served up by the Alarm Server Task (ast) from that pool to each
> AM.
>
>
> The only option is to apply filters to the CAD display.
>
> Regards,
>
> Alex Johnson
> Invensys Process Systems
> 10900 Equity Drive
> Houston, TX 77041
> 713 329 8472 (desk)
> 713 329 1600 (operator)
> 713 329 1944 (SSC Fax)
> 713 329 1700 (Central Fax)
> alex.johnson@xxxxxxxxxxxxxxxx
>
>
>
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