Scpi Error Messages - Keysight Technologies 34450A Programmer's Reference Manual

3 SCPI Error Messages

SCPI Error Messages

The Keysight 34450A returns error messages in accordance with the SCPI standard.
— A record of up to 20 errors can be stored in the instrument's error queue. If more than 20 errors have
occurred, the last error stored in the queue (the most recent error) is replaced with -350,"Error queue
overflow". No additional errors are stored until you remove errors from the queue. If no errors have
occurred when you read the error queue, the instrument responds with +0,"No error".
— The instrument beeps once each time a command syntax or hardware error is generated.
— A special global error queue holds all power-on and hardware-related errors (for example, over-tem-
perature).
— Errors are retrieved in first-in-first-out (FIFO) order. The first error returned is the first error that was
stored. Once you have read all of the interface-specific errors, the errors in the global error queue are
retrieved.
— Errors are cleared as you read them.
— Error conditions are also summarized in the Status Byte Register. For more information on the SCPI
Status System for the Keysight 34450A, see
— The interface-specific error queues are cleared by the *CLS (Clear Status) command and when power is
cycled. All errors are cleared when you read the error queue. The error queue is not cleared by a Factory
Reset (*RST command).
To Read Errors:
SYSTem:ERRor? Read and clear one error from the queue
Errors have the following format (the error string may contain up to 80 characters):
-113,"Undefined header"
306
Status Subsystem Introduction.
Keysight 34450A Programmer's Reference