Re: [foxboro] Hart communications with Rosemount Transmitters ...

• From: Corey R Clingo <corey.clingo@xxxxxxxx>
• To: foxboro@xxxxxxxxxxxxx
• Date: Mon, 29 Aug 2011 11:15:02 -0500

Yes. With our system, at v6.5.3/7.1.2, the only mechanism we have for  viewing or changing HART-specific info is IFDC, which only provides  generic HART parameters for non-Foxboro devices. We have used that on  occasion to look at transmitters, and even on one occasion to help  commission them, but AMS (or even a 375/475) it is not.  I've never used Foxboro's FDT. Feedback from another plant here on that  was not good, but things may have improved since that time when I heard  that.   Also, HART on our CP60s is s-l-o-w (one HART message per BPC). I read  somewhere that on CP270s that limitation was supposed to be removed, but I  don't know if it has been.   On the plus side, the HART cards have >250 ohms input resistance, so  handhelds reliably work, though I've had trouble occasionally on FBM215s  where I could not get into a smart positioner with a laptop until I  disabled HART comms on the DCS. Never had an issue with FBM214s in that  regard.   This all of course must be weighed against the extra configuration  required (RIN blocks plus the AINs if you want to do anything with the  values). I'm used to it, and I often script it, but it is a factor  nonetheless.   Corey Clingo BASF Corp.     From: "Steinbrecher, Nick" <E.Steinbrecher@xxxxxxxxxxxx> To: <foxboro@xxxxxxxxxxxxx> Date: 08/29/2011 10:48 AM Subject: [foxboro] Hart communications with Rosemount Transmitters Sent by: foxboro-bounce@xxxxxxxxxxxxx    List, Anybody have experience with Hart FBM's tied to  Rosemount instrumentation?  We are updating some old I/O and I am trying to see if it is worthwhile getting Hart I/O modules to go with our Hart Rosemount Transmitters instead of just the old 4 - 20ma I/O.  The benefit I am looking for is that instrument maintenance personnel can now do their work from workstations instead of having to go out to the field and connect up their Rosemount communicators to do things like check on errors and recalibrate transmitters.  Are these goals feasible?  > Nick Steinbrecher > Process Control Engineer > (908)-474-3565 > email E.STEINBRECHER@xxxxxxxxxxxx >  >  > This note may contain Infineum confidential information.  If you are > an unintended recipient; (i) place no reliance on the information > contained herein; (ii) do not disclose, distribute, or duplicate any > information from this note; and (iii) please contact the author. >  >           _______________________________________________________________________ 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   foxboro mailing list:             http://www.freelists.org/list/foxboro to subscribe:         mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe:      mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave   

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