800, Operation Complete Event; 700, Request Control Event; 600, User Request Event; 500, Power On Event - Keysight X-Series Manual

Instrument Messages
Event Messages

–800, Operation Complete Event

Err# Message
–800
Operation complete
–800
Operation complete;
Loaded <ARB filename>
successfully, but no
license <required
licenses> installed

–700, Request Control Event

Err# Message
–700
Request control

–600, User Request Event

Err# Message
–600
User request

–500, Power on Event

Err# Message
–500
Power on
–400 to –499, Query Errors
Err# Message
–400
Query Error
–410
Query INTERRUPTED
–420
Query UNTERMINATED
Instrument Messages
Verbose/Correction Information
The instrument has completed all selected pending operations in
accordance with the IEEE 488.2, 12.5.2 synchronization protocol.
This is a Warning, and is GUI only, that is, this warning cannot queried
by SCPI. It indicates that the ARB is successfully loaded into ARB
memory, but requires licenses that are not present on the instrument.
Install the required license(s) according to <required license> string to
license it or multi-pack license it.
Verbose/Correction Information
The instrument requested to become the active IEEE 488.1
controller-in-charge.
Verbose/Correction Information
The instrument has detected the activation of a user request local
control.
Verbose/Correction Information
The instrument has detected an off to on transition in its power supply.
Verbose/Correction Information
There was a problem with a query command. The exact problem cannot
be specifically identified.
Some condition caused an INTERRUPTED query to occur. For example, a
query was followed by DAB or GET before a response was completely
sent.
Some condition caused an UNTERMINATED query to occur. For example,
the device was addressed to talk and an incomplete program message
was received.
43