Keysight N5183B MXG - Page 7

Keysight X-Series Signal Generators Error Messages 7
Error Messages
Error Message Type
Error Message Type
Events do not generate more than one type of error. For example, an event that
generates a query error will not generate a device-specific, execution, or
command error.
Query Errors (–499 to –400)
Query error messages indicate that the instrument’s output queue control has
detected a problem with the message exchange protocol described in IEEE
488.2, Chapter 6. Errors in this class set the query error bit (bit 2) in the event
status register (IEEE 488.2, section 11.5.1). These errors correspond to
message exchange protocol errors described in IEEE 488.2, 6.5. In this case:
— Either an attempt is being made to read data from the output queue when
no output is either present or pending, or
— data in the output queue has been lost.
Device Specific Errors (–399 to –300 and 201 to 810)
Device specific error messages indicate that a device operation did not
properly complete, possibly due to an abnormal hardware or firmware
condition. These codes are also used for self-test response errors. Errors in this
class set the device-specific error bit (bit 3) in the event status register (IEEE
488.2, section 11.5.1).
The <error_message> string for a positive error is not defined by SCPI. A
positive error indicates that the instrument detected an error within the GPIB
system, within the instrument’s firmware or hardware, during the transfer of
block data, or during calibration.
Execution Errors (–299 to –200)
Execution error messages indicate that an error has been detected by the
instrument’s execution control block. Errors in this class set the execution error
bit (bit 4) in the event status register (IEEE 488.2, section 11.5.1). In this case:
— Either a <PROGRAM DATA> element following a header was evaluated by
the device as outside of its legal input range or is otherwise inconsistent
with the device’s capabilities, or
— a valid program message could not be properly executed due to some
device condition.
Execution errors are reported after rounding and expression evaluation
operations are completed. Rounding a numeric data element, for example, is
not reported as an execution error.