Code And Configuration Files; Further Testing; Test For Redundancy - GE D20MX User Manual

Code and configuration files

Further testing

Test for redundancy

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If the code and configuration files compiled for your specific system are already
downloaded, then you can login straightaway to WESMAINT II+ for powering-up and
testing.
If your system-specific code and configuration files are not downloaded, then you need to
power-up with the default configuration. You can then login to the SHELL, download your
system-specific files and restart the D20MX for testing.
For details, see the SGConfig online help.
For further specific testing, log in to WESMAINT II+. See the WESMAINT II+ Users Guide and
WESMAINT user guides for specific applications.
If you have a D20 redundant system, you must test that:
• CCU A and CCU B are communicating
• Fail-over is functioning correctly.
To check that CCU A and CCU B are communicating once you have powered-up the
Primary and Secondary units:
1. On the front of the RS-232 Panel, check that CCU A LED is illuminated, which shows
that CCU A is Active.
Both the PWR A and PWR B LEDs should be illuminated.
2. Connect a NULL modem cable (GE Energy part number 977-0529) to the RS-232
connector on the front panel of the active D20MX.
3. Attach the other end of the cable to the serial communications port of the PC or
terminal.
4. Login to WESMAINT II+ through the emulator you are using.
Result: The WESMAINT Main Menu is displayed.
5. Check to see that STNBY appears at the top-left of this WESMAINT screen.
Results: If this text shows, then the Primary and Secondary CCU are communicating.
If this text does not show, then the Primary and Secondary are not communicating.
STNBY appears on the Active CCU WESMAINT Main Menu display approximately one
minute after power-up of the two units. Wait for this message to appear before following
the next procedure.
CHAPTER 4: POWERING-UP AND TESTING
GENERAL D20MX HARDWARE USER'S MANUAL