Re: [foxboro] Non-FT FCP and IO in Local Control Panel
- From: Terry Doucet <doucet427@xxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Fri, 1 Jun 2012 15:31:03 -0400
Per the FCP270 PSS 0 - 60 C. So your heater likely keeps you above
freezing but depending on where you are located and sunlight on the cabinet, 60
C might be a problem. You'll also have to review the PSS's for all other
devices in the cabinet.
Terry
> Subject: Re: [foxboro] Non-FT FCP and IO in Local Control Panel
> To: foxboro@xxxxxxxxxxxxx
> From: tjvandew@xxxxxxxxx
> Date: Fri, 1 Jun 2012 19:13:34 +0000
>
> Dave,
> I am sitting in the waiting room at the hospital waiting for Kristen to
> bring my 5th grandson into the world so I have some time to kill. Duc, we
> are at Baptist East. (First time anybody has posted that on the list I
> bet;<).
> I'm not positive but I think the FCP has a lower temperature threshold
> than the 200 series FBM's. We thought about putting both in the field when I
> was in HI. I'm sure having the FBM's in the compressor cabinet would be
> fine. We never had much trouble with the 100 series FBM's out in C-10 but I
> personally liked having them all in the E/I rooms. That was our final
> decision in HI. In that way you have one place to go to see the status of
> FCP and FBM's and don't have the fieldbus strung out. (With fiber FB rather
> than copper that isn't as big of a concern though. Maybe I am old school but
> I like the central "controlled environment" for CP's and FBM's. One mans
> opinion.
> I think I remember Wolfie scoping out replacing those PLC's a few years
> before I retired. Are you going to use the modular sequences like in C-10?
> If so I volunteer to do the application work and graphics;<). When I finish
> this job...........
> Cheers,
> Tom
> Sent from my Verizon Wireless BlackBerry
> -----Original Message-----
> From: <dave.caldwell@xxxxxxxxxxxxxx>
> Sender: foxboro-bounce@xxxxxxxxxxxxx
> Date: Fri, 1 Jun 2012 14:09:46
> To: <foxboro@xxxxxxxxxxxxx>
> Reply-To: foxboro@xxxxxxxxxxxxx
> Subject: [foxboro] Non-FT FCP and IO in Local Control Panel
>
> Hello List,
> I am replacing an aging AB PLC-2 used for compressor control. The PLC is
> located in a purged cabinet in the field with a heater only (no cooling).
>
> Thought was to replace the non-fault tolerant PLC-2 processor with an FCP270
> non-fault tolerant. Also, to replace the PLC IO with a baseplate of 200
> series. Finally, use fiber to get back to the MESH switch.
>
> Anyone had problems with non-fault tolerant FCP270? Anyone ran into issues of
> FCP270 or 200 series IO being exposed to ambient temperature swings?
>
> Also considered moving the CP only, or both CP and IO back to the conditioned
> space, but each has advantages/disadvantages. Any thoughts?
>
> Thanks,
> Dave
>
>
>
>
>
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>
> _______________________________________________________________________
> This mailing list is neither sponsored nor endorsed by Invensys Process
> Systems (formerly The Foxboro Company). Use the info you obtain here at
> your own risks. Read http://www.thecassandraproject.org/disclaimer.html
>
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