User manual

PSU Programming Manual
122
or query errors; see the other error definitions
in this section.
Error Code
Description
-310 System error
Indicates that some error, termed “system
error” by the device, has occurred. This code is
device-dependent.
-320 Storage fault
Indicates that the firmware detected a fault
when using data storage. This error is not an
indication of physical damage or failure of any
mass storage element.
Query Errors
Overview
An <error/event number> in the range [ -499 , -
400 ] indicates that the output queue control of
the instrument has detected a problem with the
message exchange protocol described in IEEE
488.2, chapter 6. The occurrence of any error in
this class shall cause the query error bit (bit 2)
in the event status register (IEEE 488.2, section
11.5.1) to be set. These errors correspond to
message exchange protocol errors described in
IEEE 488.2, section 6.5. One of the following is
true:
 An attempt is being made to read data from the
output queue when no output is either present
or pending;
 Data in the output queue has been lost.
Events that generate query errors shall not
generate command errors, execution errors, or
device-specific errors; see the other error
definitions in this section.