Re: [foxboro] Unique Alarm Sounds

Dennis,

External horns work well and are used in many of the control rooms I've worked 
with.  

Consider also using the output to drive some type of light or other indication 
in addition to the horn.  I've worked with operators in several control rooms 
where in spite of the horn sounds being the same for several years, operators 
just didn't easily associate the horn sound with a particular unit (just look 
what happens in a room when a cell phone rings -- everyone checks their phone 
even if it's not their ring-tone).  This was particularly true when operators 
might be responsible for different units from one day to the next.  They found 
it much easier to hear the horn and then look to their console(s) to see if 
the alarm light was on over their area.  Associating alarm priorities with 
different lights on a stack in each area works well too.


Regards,

Kevin FitzGerrell
Sr Control Systems Engineer
Kinleith Pulp & Paper
Carter Holt Harvey Ltd.
+64 27 460 9994
Quoting "Lowell, Tim:" <Tim.C.Lowell@xxxxxxxxxxxxxxxxxx>:

> Dennis,
> 
> The usual answer is to configure your horn.cfg file to output priority
> 1
> and 2 alarms, or whatever priority you wish, to a COUT block driving an
> FBM10 (or the 200 series equivalent) 120V AC output which then drives a
> standard annunciator horn. You can send different priorities to
> different horns, and have separate horns for each plant unit or area.
> We do that here, and it's very successful. If you want more info,
> contact me off-line.
> 
> Tim Lowell
> Control Systems Engineer
> ConocoPhillips Trainer Refinery
> (610) 364-8362
> tim.c.lowell@xxxxxxxxxxxxxxxxxx
> 
> 
> -----Original Message-----
> From: foxboro-bounce@xxxxxxxxxxxxx
> [mailto:foxboro-bounce@xxxxxxxxxxxxx]
> On Behalf Of Dennis Stone
> Sent: Tuesday, June 21, 2005 3:58 PM
> To: foxboro@xxxxxxxxxxxxx
> Subject: [foxboro] Unique Alarm Sounds=20
> 
> Our facility will have an integrated control room, 3 separate units
> being operated by three separate operators from the same control room
> with six screens per operating unit. My problem is with alarming,
> currently only one operator is operating from this control room now but
> will be joined by another in a couple of months. How can I
> differentiate alarms based on sound so that each operating area has a
> unique sound? I tinkered with the built-in alarm sounds and these are
> unacceptable due to lack of volume or tone. Does anyone have any ideas
> short of outputting the existing horn output to a distortion device and
> then to an amp connected to a set of external speakers?
> =20
> 
> Any help would be greatly appreciated.=20
> 
> =20
> 
> Dennis Stone
> 
> Process Control Engineer
> 
> Hunt Refining Company
> 
> dstone@xxxxxxxxxxxxxxxx <mailto:dstone@xxxxxxxxxxxxxxxx>=20
> 
> (205) 391-3345
> 
> (205) 391-3564 FAX
> 
> =20
> 
> 
> =20
> =20
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