Instruction manual

Instruction Manual
760006-A
September 2001
11-28 Appendices Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 Platform
tions are chosen, the program will set it-
self up in a directory called “NGA
2000SUITE”. Under this directory will be a
“DOCS” and an “EXAMPLES” directory.
Under the latter will be an “EXCEL” di-
rectory.
NOTE
The SLTA's PC communications set-
ting is normally COM1. Some PCs
assign COM1 to a mouse or other
pointing device. If this is the case,
the user must manually change the
following item in the PCs CON-
FIG.SYS file to reflect another avail-
able COM port (typically COM2):
DE-
VICE=C:\ECHELON\BIN\LDVSLTA.S
YS /pn /d1 /a
where /pn is the option switch that
determines the device's COM port, n
being the port number. Valid port
numbers are 1 through 4. For addi-
tional information, refer to the SLTA
instruction manual. Using an editing
software, change the CONFIG.SYS
file to an appropriate setting.
3. Exit WINDOWS and reboot the PC.
4. Re-enter Windows, and double click on
the DDE server icon. The server will start
to interrogate the network in the same
manner as the Platform, and build itself a
database.
5. Depending on PC microprocessor speed
(e.g., 386, 486, 25 MHz, or 100 MHz) and
the number of nodes on the NGA 2000
network, this could require as little as 2
minutes for a small system or as much as
10 minutes for a large system.
6. When it has finished, the DDE server will
minimize itself. If desired, open it by dou-
ble clicking on its icon at the bottom of the
screen, and click on File in it. Select No-
delist… to see which nodes were found.
7. If desired, edit the node location or TAG.
If you change the TAG, the Excel spread-
sheets (which use the TAG to identify
Analyzers) will not work, so exit the DDE
server and restart it to refresh the now
changed database.
8. Start the Microsoft Excel program.
9. Open the Excel example worksheet file:
NGA 2000LOG.XLS in the EXCEL direc-
tory under EXAMPLES.
10. Press the “Record Data” button on the
Variable Select sheet. Answer all the
prompts as desired.
11. Open the other Excel example worksheet,
NGA 2000CHECK.XLS, NGA
2000PARMS.XLS and NGA
2000TREND.XLS, found in the EXCEL di-
rectory. Press the “Analyze Network”
button on these, and follow the directions.
Save these files under different names as
desired.
NOTE
The macros that operate these
spreadsheets are hidden. Unhide
them by selecting Format | Sheet |
Unhide. The macros are written in
Visual Basic for Applications™, and
may be modified or copied as de-
sired.
Save the files as appropriate at the end of the
Excel session. The Excel-based PC Interface
package is fully functional.