HP E1429A manual SYSTem, ERRor?, VERSion?, Example Reading the error queue

Models: E1429A

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SYSTem

Subsystem Syntax

The SYSTem command subsystem returns error messages and the SCPI version number to which the HP E1429A/B complies.

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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HP E1429A manual SYSTem, ERRor?, VERSion?, Example Reading the error queue, Example Querying the Scpi revision