KROHNE BM 102 HART - Manual (Page 5)

BM102 Remote Operation - HC 275 / AMS
Dev.-Rev. EC, DD-Rev. 01
© 2000 KROHNE SA 26103 Romans (France) Page 5
4 Asset Management Solutions (AMS)
4.1 Installation
•
Refer to the “AMS Installation Guide” (Fisher Rosemount): “Installing Modems” (section 5)
and “Wiring Diagrams” (appendix B).
•
AMS Configuration:
If the BM102 Device Description is not already installed on the AMS System an
“BM102 Device Installation Kit” (on floppy disk / CD-ROM from KROHNE) is required.
When installing the DD with the Installation Kit refer to:
AMS 1.4: “AMS User’s Guide” (Fisher Rosemount), section 4 ➪ “Adding New Device Types to
AMS” ➪ “Install Device Types Manually” .
AMS 5.0: “AMS User’s Guide” (Fisher Rosemount) ➪ “Adding New Device Types to AMS” ➪
“Install Device Types Manually” .
4.2 Operating
Refer to the BM102 Menu Tree AMS (Attachment B).
Some additional comments:
•
To “open” service functionality, the user has to log in as specialist. To do this, one should
invoke the “Service Code” method from the Device Context Menu and enter the correct service
password. Note, that after the Device Connection View is reopen (or the same method is invoked
with a wrong service password) specialist authorization is lost, and all service
parameters/functions (D/A trim, Reset user EEPROM, Reset factory EEPROM…) again become
inaccessible.
•
Compared with HC275 or PC-Star2 configuration tools, the BM102/AMS application has one
additional function, which is the HART® Common-Practice Apply values method. The latter
assigns to the PV Upper/Lower Range magnitude value of the applied process.
•
In contrary to the HC275, handling of the Strap Table within AMS can be carried out in two
ways:
- 1. The old scheme (Strap table input, Strap table suppress methods).
- 2. Controlled directly from the configuration displays. Due to transmitter implementation,
some steps should be sequentially undertaken to create or change the table from
configuration displays. The matter is that all the changes in table of elements are initially
accumulated in the instrument memory. The trigger event, that permits the settling of the
strapping table in the EEPROM, is the Command #143 (Conversion Table Number). It is a
single parameter command with the ‘Number of points’ as variable (configuration display
“Strap Table”). It is the only command that initiates the strap table and in case it was
plausible, it activates the settling of the EEPROM. As every point of the strap table relies on
the variable “number of points“ (in term of acceptance), and considering that this number of
points has been set before, the user could see on the display:“error table non monotonous“.
Subsequently, the strapping table (every item) is written in RAM. For EEPROM records
(non volatile memory) you need to transmit to the device the number of table points. That
means by reentering the number (say, 10 to 10, or 4 to 4) and press “Apply“ again.
All comment’s above can be summarised as following:
1. If the number of points is changed (with or without changes of the table contents), the user
should ignore the first possible error response after pressing ‘Apply’ (‘Table not monotonous’
happened writing ‘Number of points’), “change” the number of points again to the desired
amount (i.e. reenter exactly the same value) and again press ‘Apply’.
2. If the number of points is preserved but some table items are changed, the user should press
‘Apply’ (thus transferring changed items to device), then reenter the number of points (as above)