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

• From: Corey R Clingo <corey.clingo@xxxxxxxx>
• To: foxboro@xxxxxxxxxxxxx
• Date: Mon, 29 Aug 2011 12:39:06 -0500

They do have a "noalarm" option in the ECBs now (not sure ATM what QF  added that in), so that loss of HART comms doesn't generate a Sysmon  message. That has gotten rid of most of our nuisance system alarms.  In one of my plants, the HART has worked reasonably well, though we  haven't gotten enough out of it up to this point for the extra  configuration, etc. to be worth it. In my other plant, where we have more  egregious wiring issues, it hasn't worked well at all.    I'm not sure what strategy Foxboro has going forward for this. I don't see  the tight integration with a powerful instrument maintenance system along  the lines of DeltaV and AMS. However, since there appears to be no open,  common standard to get the HART info up through a control system of your  choice to the external maintenance system of your choice, the multiplexer  setup may be the most system-agnostic, if not the cleanest, approach.   [That HART itself is not a freely-available standard is a continual  disappointment to me as well, but I digress.]   Corey    From: "Lowell, Timothy" <Timothy.Lowell@xxxxxxxxxxx> To: "'foxboro@xxxxxxxxxxxxx'" <foxboro@xxxxxxxxxxxxx> Date: 08/29/2011 11:28 AM Subject: Re: [foxboro] Hart communications with Rosemount Transmitters Sent by: foxboro-bounce@xxxxxxxxxxxxx    Nick,  We use Pepperl+Fuchs multiplexers tied back to an Emerson AMS system to  monitor and calibrate some of our Rosemount instruments. This works very  well, and we will be expanding this when we cut over to 200 series FBMs  later this year and next year. Your Invensys rep should be able to get you  the appropriate part numbers for the P+F cards. You'll also need a small  Digiport switch at each cabinet to send the data back via TCP/IP to a  central location where the AMS system resides. This assumes you have fiber  available at each location where your FBM cabinets are, of course.  We haven't had much success with the HART signal on I/A, but hopefully,  Invensys has improved the HART FBMs in the last few years. We turned off  the HART signal because the FBMs kept sending out errors to SysMon. We  upgraded the EEPROMs on the FBMs in 2009, and we will again next April,  but the HART signal is still off.  Thanks,  Tim Lowell Tesoro Corporation | 54741 Tesoro Rd, Kenai, AK 99611 | 907-776-3526  (work) | 210-439-5914 (cell)          _______________________________________________________________________ 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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