Metrohm 730 Sample Changer - Manuel (Page 175)

5.4 Diagnosis
730 Sample Changer, Appendix
172
5.4.7 RS232-Interface RS232-Interface
This diagnosis step tests the functionality of the serial interface.
• Prepare instrument for diagnosis (see chapter. 5.4.2).
• If necessary, press <ê> several times until
diagnosis
>RS232 test
• <ENTER>
>RS232 test
RS232 test connector ?
• Insert the test plug 3.496.8480 into the RS232 interface without
turning off the instrument.
• <ENTER>
The test runs automatically. If no error occurs, the following appears:
>RS232 test
RS232 test ok
• Remove test plug and press <ENTER>.
diagnosis
>external bus test
5.4.8 External Bus Interface
This diagnosis step tests the functionality of parts of the external
bus interface.
• Prepare instrument for diagnosis (see chapter 5.4.2).
• If necessary, press <ê> several times until
diagnosis
>external bus test
• <ENTER>
The test searches for all instruments that are connected on the E-bus interface. The sam-
ple changer considers the following to be “instruments”:
Tower 1 (minimum version)
Tower 2 (optional)
Dosimat Interface (optional, maximum 3 pieces)
If no error occurs, an identification for each instrument which is connected on the E-bus
must appear on the display.
You can browse through this list of identifications found by pressing the <ENTER> key. The
following table shows which identifications must appear with which configurations.