Re: [foxboro] 100 serries FBM end of sales

In our case, we have a general guideline to build in 20% spare capacity for
minor additions and small projects.  I've surveyed the site and tried to bring
spare capacity back to 20% for our main I/O types (ain, tc, rtd, aout, cin,
cout) by CP.  

After that, I anticipate that upgrades will provide ongoing spare I/O for the
plant.  If we have a significant upgrade go ahead in any area we will look at
upgrading that area to current I/O, and any legacy I/O will be made available
for small projects.

We'll continue to use the MEP program to repair modules that fail in service.

Regards,

Kevin FitzGerrell
Carter Holt Harvey, Ltd.
+64 27 460 9994

Quoting stan <stanb@xxxxxxxxx>:

> I'm curios as to how other sites are planning on handling the end of
> sales
> life for 100 series FBM's.
>
> In our case, we have a ongoing requirement to add a loop here and there
> to
> existing systems, and have installed cabinets with extra space to allow
> for
> this. In addition most of our CP's are pre CP60. So, as these needs crop
> up
> down the road, we are going to have problems meting them.
> 
> If it were as simple as installing a 200 series base, and adding that
> to
> the fieldbus, we could probably live with that, but the idea of
> propagating
> all the way back to a CP upgrade, just to add a few I/O points, is
> neither
> economically appealing, nor generally possible, since there are many
> locations
> where this CP upgrade can be done on either a unit, or a mill wide
> shutdown.
> 
> How are others planning on addressing this?
> 
> -- 
> U.S. Encouraged by Vietnam Vote - Officials Cite 83% Turnout Despite
> Vietcong Terror 
> - New York Times 9/3/1967
>  
>  
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