Re: [foxboro] Alarm envrionments

One other approach that hasn't been mentioned yet is to actually redirect the 
alarms -- using a setpars (fast) or omsetimp (slower) script, or a sequence 
block (very slow) to change the alarm groups of the blocks with alarms 
configured in Unit 1.  If this approach is used, consider having the backup 
group direct alarms to both Unit 1 and Unit 2 -- this preserves CAD and AHD 
for Unit 1 when alarms are redirected, ie Group 4 -> Unit 1, Group 8 -> Units 
1 & 2.

Advantages:
* Alarms are redirected from Unit 1 to Unit 2 even if the Unit 1 workstation 
is down.
* Alarms from Unit 1 do not affect Unit 2's CAD and AHD when not redirected.
* Can be done from either Unit 1 or Unit 2 workstation.

Disadvantages:
* Transition period issues, ie - if an alarm is received on one workstation, 
but the return to normal is received on the other unit, gcio LED may not show 
appropriately on one workstation, and alarm may have to be cleared from one 
CAD, rather than just acknowledged.
* Because alarm groups are settable, if an upload is done while alarms are re-
directed, the alarm groups in the station work files will be changed.
* Script or program needs to be updated when new alarms are configured in Unit 
1.

Regards,

Kevin FitzGerrell
Senior Control Engineer
Kinleith Pulp & Paper
Carter Holt Harvey Ltd.
+64 27 460 9994

Quoting stan <stanb@xxxxxxxxx>:

> We have a single node that serves as the control system for 2 "units".
> At
> present we have the alarms for, say, unit 1, directed to on WP, and the
> alarms for say, unit 2, directed to 2 other WP's. 
> 
> I'd like for the unit 2 operator to be able to "back up" the unit 1
> operator
> on handling alarms, Unit1 has an audible alarm that the unit 2 operator
> can
> hear.
> 
> I was poking around in the alarm manager screens, and I found under
> Display
> -> Operations, that I can bring up a new window, that has "environments"
> as
> one of it's choices. Is there some way I can configure this so that the
> WP's for unit2 can "switch environments" and see the unit1 alarms?
> 
> 
> -- 
> U.S. Encouraged by Vietnam Vote - Officials Cite 83% Turnout Despite
> Vietcong Terror 
> - New York Times 9/3/1967
>  
>  
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