HP E1429A Manuel d'utilisateur Page 271

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SYSTem
The SYSTem command subsystem returns error messages and the SCPI version
number to which the HP E1429A/B complies.
Subsystem
Syntax
SYSTem
:ERRor? [query only]
:VERSion? [query only]
ERRor?
SYSTem:ERROR? returns the error messages in the error queue. See Appendix B
for a listing of the digitizer error numbers and messages.
Comments As errors are detected, they are placed in the error queue. The queue is first-in,
first out, meaning that if several error messages are waiting in the queue,
SYSTem:ERRor? returns the oldest unread error message.
The error queue can hold 30 error messages. If more than 30 messages are
generated without being read, the last error message in the queue is replaced with
error -350,"Too many errors". No additional messages are placed into the queue
until SYSTem:ERRor? reads some messages or until the queue is cleared using
the *CLS (clear status) command.
When the error queue is empty, SYSTem:ERRor? returns +0,"No error".
*RST Condition: unaffected
Power-On Condition: no errors are in the error queue
Example Reading the error queue
SYST:ERR? Query the error queue
:VERSion?
SYSTem:VERSion? returns the SCPI version number to which the
HP E1429A/B complies: "1992.0".
Example Querying the SCPI revision
SYST:VERS? Query SCPI revision
*RST Condition: none
SYSTem Subsystem Command Reference 271
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