Union Products Communication display Unit 6696 Manuale Utente

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SECTION IV  CONFIGURATION & DIAGNOSTICS
SM 7063  07/97                                                                                                                            4-1
4.0
CONFIGURATION and DIAGNOSTICS
A dedicated serial port, labeled DIAG, is located on the CDU’s Rear Panel Assembly. The port uses  a
standard 9-pin plug type RS-232/C “D” connector and interfaces to an IBM compatible PC via a
“straight-through” off-the-shelf 9-pin serial cable.  All CDU configuration and diagnostics are performed
using the DIAG port in conjunction with Diagnostic Software running on a PC.
4.1
Diagnostic Software
The Diagnostic Software is a single program named diagunit.exe supplied on a floppy disk. The
software can be ordered under US&S part number N4512321264 (3.5” disk) or N4512321265 (5.25”
disk).  The software incorporates a full set of diagnostic functions for maintenance purposes and
supports the capability to fully configure the CDU’s operating functions.
This manual provides examples of the diagnostic functions and provides detailed information
on CDU configuration.  Refer to Service Manual SM 7064 (Shop Maintenance) for detailed
diagnostic information and procedures.
4.1.1
Running the Diagnostic Software
To run the Diagnostic Software, perform the following:
1. Power-up the CDU. Do NOT plug the serial cable into the DIAG connector yet. Let the CDU execute
its normal power-up sequence.  Also power-up the diagnostic PC, if it’s not already on.
2. Now connect the “straight-through” (not null modem) serial communications cable between the
diagnostic PC and the CDU’s rear mounted DIAG connector.
NOTE
The  CDU’s DIAG port is permanently set up for 9600 baud, 8 data bits, 1 stop
bit, and no parity.
3. On the PC, execute the Diagnostic Software from the floppy disk, or from the hard disk if it has been
copied there, by typing “diagunit” followed by <Enter>.
4. The Communications Set-Up Screen will appear as shown on the next page.  The program name
and version appear at the top of the screen.  The box at the bottom of the screen displays any
prompts for user input.  The last line shows applicable PC function keys.
5. The Diagnostic Software defaults to PC serial port COM1.  If use of COM2 is required, press <F2>
to use COM2.  Press <F1> to return to COM1.
6. To quit the program at any time, press <F4>.  The program will prompt with “Really quit? [Y, N]:”.
If “Y” is selected, the program will terminate.  If “N” is selected, the program continues.