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HART device name. When this occurs, line two of the display will indicate “Generic” and the device tag
number.
In general, the Generic HART mode operates similarly to its device specific DOF counterpart (see HART
Communication section of this manual for more details). However, the MFC does not display Device Specific
related communication menus or options when in the Generic communication mode. For example, the Zero and
Sensor trim menu options (normally executed by Device Specific commands) are not displayed for pressure
transmitters without DOF support. Please see the
Download Site
section of this manual for information on
downloading the latest Device Specific DOF files to your MFC.
DOF / Firmware Download Site
Overview
One of the unique features of the MFC 4100 Series is the built-in ability to have firmware upgrades installed
by the user at his location. The Meriam Download Site is accessible over the Internet and provides for the
convenient download of new or revised firmware and DOF’s (Device Object Files) for HART
communication. MFC units already in service in the field do not need to be returned to the factory for
firmware upgrades or improvements released by Meriam. The user can simply download the files to a PC
having Internet access and upgrade the MFC firmware using the MFx Installer PC utility. DOF’s are also
available on this site. The Download Site enables users to stay current as Meriam releases new DOF’s or
revisions of existing ones.
Who has access to the Download Site?
All MFC purchasers have unlimited access to the Download Site for six months from date of shipment.
These customers may download any published file from the site to their MFC upon entry of the proper
authenticating codes (shipped with unit). After the initial six-month period, the Download Site is available
with paid annual subscription fee. Contact Meriam Process Technologies at (216) 281-1100 or
for more information and to purchase annual subscriptions.
PC Requirements for Download Operations
Meriam recommends IBM compatible Pentium I PCs or higher for download operations. The PC should
have an available RS-232 port, minimum modem speed of 28K and access to Internet service.
Preparing the MFC
All MFC models come ready to connect to an IBM compatible PC using the DB-9 socket located at the
bottom of the MFC enclosure. A six-foot male DB-9 to female DB-9 cable (P/N A90047-00052) is available
from Meriam. Similar cables are acceptable. Connect the MFC to the PC and power up the MFC using
fresh internal batteries or the optional AC Adapter (P/N A36742). The MFC is ready for download
operations.
Preparing to Download
Establish connection to the Download Site by going to the Meriam Process Technologies website at
www.meriam.com
. Click on the “Download Site” button on the home page navigation bar to access all
download functions. A list of currently available DOF’s for HART device communication can be viewed at
the
www.meriam.com
website. Click the “Available DOFs” button on the home page navigation bar to view
an up to date list of available DOF’s.
