4-3
POWER-ON
PROCEDURE
At power-on, the power meter performs a brief power-on self test (POST).
After the POST, the instrument loads the last used configuration and dis
-
play settings. If a POST error occurs, information and available options
will be displayed on the screen.
The following tests are performed during the power-on self test, and also
when the GPIB *TST? command is sent:
During the power-on self test, only failures and warnings will be displayed
on the front panel. If all tests pass successfully, no self test information is
displayed.
Failure and warning messages that can be displayed on the front panel
are:
Flash code csum
Personality csumVolatile RAM
Cal data csum
Non-Vol RAM
Software version - this is only a warning
Current Setup
Saved Setups
Secure - Mem clear - this is only a warning
Display
Keyboard
DSP error # - followed by a 4-digit hexadecimal error code
ML2430A OM 4-3
OPERATION POWER-ON PROCEDURE
TEST SEQUENCE POSSIBLE STATUS
Flash EPROM code checksum Pass or Fail
Flash EPROM personality data checksum Pass or Fail
Flash EPROM calibration data checksum Pass or Fail
Volatile RAM tests Pass or Fail
Non-volatile RAM checksums Pass, Fail
WARNING - Software version
changed - all non-vol stores reset
Current store failed - current store
reset
Saved store(s) failed - failed store
status changed to not saved
WARNING - Secure mode clear
memory - all non-vol stores reset
Display Pass or Fail
Keyboard Pass or Fail
Table 4-1 Power-on Self Test
