1269 User Manual
Using The Enhanced Monitoring System 4-41
C
Turn VXI mainframe power on. After the resource
manager program has executed (MXI/VXI and embedded
computer interfaces), or after a five second delay
(GPIB/VXI slot 0 interface), send the following command
to the EMS over the VXIbus:
SYST:ERR?
Read the reply to determine the cause of the self-test
failure. The meaning of the replies to this query are
discussed later in this section.
The “Self Test Failed!” message will continually be
displayed until it is cleared. This message may be cleared
using the following command:
DISP:TEXT:CLEAR
The self-tests may also be initiated with an ASCII command
over either the RS-232 or the VXIbus interface. The
command:
*TST?
initiates the self-test. The self-test will complete after
approximately 3 seconds. Upon completion of the self-test,
the result may be read via the VXIbus (the result will
automatically be sent over the RS-232 interface if the
command was received on the RS-232 interface).
The result of the self-test will be one of the following:
0
The self-test has passed
-1
The checksum of the ROM which contains the
firmware does not match the checksum stored in the
ROM itself.
-2
The EEPROM checksum does not match the
checksum stored in the EEPROM itself; the
EEPROM is possibly corrupt.
-3
One of the VXI mainframe sensors routed to the
EMS’s A/D converter has failed. The measured
value on one of the sensors has measured
extremely high, indicating that the sensor is
disconnected. The sensor(s) at fault is indicated in
the reply to the “SYST:ERR?” query.
-4
The EMS programmable interrupt timer has failed its
self test.
-5
One section of the EEPROM has failed its
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