Revision 4 Foundation Fieldbus RMA803 Remote Indicator User's Guide Page 95
This reduces the traffic on the link and therefore reduces the time required for the download to
complete.
5. Parallel Firmware downloads from single CB
Firmware downloads to a single FIM should be done from single CB instance. This reduces the
chance of initiating multiple downloads to the same H1 link from different users.
6. FF segment design (the choice of devices to connect to a FF segment) must consider the
maximum current draw of those devices, as well as the potential for inrush current during
power-up.
For reference, the RMA803 REMOTE INDICATOR provides the following:
• Max current draw (observed during firmware download): 28 mA
• Normal quiescent current: 18 mA
• Inrush when powered on: 28 mA
Downloading the File
The firmware file to be downloaded is called as Gendomain file and have the file extension .ffd.
File Name
The file name is constructed as follows:
“Manufacturer ID” + “_” + “Device Type” + “_” + “Domain Name” ” + “_” +“Software Name” +
“_” +“Software Revision” + “.” + “ffd”, where:
• Manufacturer ID is represented as six hexadecimal digits (leading and trailing zeroes are
included).
• Device Family is represented as four hexadecimal digits (leading and trailing zeroes are
included). For Multidomain devices, Device Family is replaced by Multidomain Family.
• Device Type is represented as four hexadecimal digits (leading and trailing zeroes are
included).
• Leading “0”s is not suppressed for Manufacturer ID and Device Type.
• Trailing blanks are stripped from Device Family, Domain Name, Software Name, and
Software Revision.
• If Software Name or Software Revision is composed of all blanks, then the underscore that
would have preceded is omitted to prevent names with two adjacent underscores, or from
having the underscore character appear directly before the “.ffd”.
For example, if the file contains the following header values,
Manufacturer ID = “48574C”
Device Type = “0005”
Domain Name = “DOM01”
Software Name = “FD-SW”
Software Revision = “2-41”
Then the file name would be:
“48574C0005_0005_FD-DOM_FD-SW_2-41.ffd”.
ATTENTION
In the RMA803 Remote Indicator, only communication board firmware can be
upgraded using the class 3 download. Display boards’ firmware upgrade is
not possible through FF link in the current release
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