Re: [foxboro] FoxCOM to HART Conversion - Address?
- From: "Badura, Tom" <tbadura@xxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Wed, 11 Mar 2009 17:30:56 -0500
Jeff,
I cannot be of much help with your Foxcom to Hart conversion questions
only because we have resisted making this move ourselves. However, I am
very interested in the future status of Foxcom. We have been told both
from both our local Foxboro Instrument rep and Foxboro Instrument people
that Foxcom would continue to be available and supported far past the
foreseeable future. It does now appear that some newer version of
instruments (CFT50 mass flow, 84 vortex) are only available in Hart.
Does anyone out there have any input or know for sure? I am also very
interested in how your conversion process proceeds. Please keep us
posted.
Thank you,
Tom Badura
Plastics Engineering Company
920-458-2121 x3366
tbadura@xxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Ellis, Jeff
Sent: Wednesday, March 11, 2009 3:16 PM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] FoxCOM to HART Conversion - Address?
We have a customer that is undergoing an I/O conversion from 100 series
to the 200 series I/O. Since the FoxCOM protocol will not be supported
or available sometime in the foreseeable future their desire is to
convert all FoxCOM FBMs (FBM18 / FBM39) to HART (FBM214). We are
currently working on this conversion using a Foxboro FoxCOM pressure
(IDP) transmitter. The physical conversion is relatively simple (i.e.
changing an electronics "puck" on the transmitter). All process
variables look good (primary, secondary etc.). We have proven that
certain transmitter data stays in the transmitter (i.e. High Output
Value, Low Output Value, Swapping Meas1 w/ Meas2 etc.). However, other
transmitter data (i.e. Tag Name, Descriptor, M1 Units etc.) does not
appear to be available from the list of Block Parameter given in the
Foxboro documentation (B0400FF Rev C - HART(tm) Communication Interface
Modules (FBM214/215/216/218) User's Guide). We have proven, in our
minds, that these vari
ables still reside in the "transmitter" electronics.
Does anyone know if these variables have been addressed over to the HART
interface or are these memory addresses only available to the FoxCOM
modules? We would really like to be able to preserve these values
without having to retouch each transmitter. Secondly, in the case of
costume units the HMI on the transmitter still reads the appropriate
units (i.e. KPPH) but this value does not come across on the PVUNITS or
SVUNITS. Got any ideas??????
Thanks in Advance,
Jeff Ellis
PREMIER System Integrators
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