Keysight x-series User Manual

9 Programming the Instrument
9.4 Status Register System & STATus Subsystem
Note that the Event register is "Clear-on-Read": when any bit is read, it is
automatically cleared.
Questionable Registers
These registers report abnormal operating conditions. The status register hierarchy
is:
–
The summary outputs from the six QUEStionable:<keyword> detail registers
are inputs to the "Questionable Register" on page 2794
–
The summary output from the "Questionable Register" on page 2794 is an input
to the Status Byte Register
–
The summary output from the is an input to the "Operation Register" on page
2787. The inputs to the "Operation Condition Query" on page 2788 Register
indicate the real time state of the instrument. The "Operation Event Query" on
page 2789 Register summary output is an input to the Status Byte Register
Note that, in E4406A only, the "Operation Enable" on page 2789 Register has an
additional function. It is ANDed with the "Operation Condition Query" on page 2788
Register to determine the instrument busy state, which is checked by "*OPC? -
Operation Complete" on page 2747 and "*WAI - Wait-to-Continue" on page 2751 .
If the ANDed result is non-zero, the instrument is considered busy.
9.4.3 Status Register SCPI Commands
Monitoring of instrument conditions is done at the highest level using the following
IEEE 488.2 common commands.
For complete command descriptions, see "IEEE 488.2 Common Commands" on
page 2744. Individual status registers can be set and queried using the commands
described in "Status Subsystem Registers and Commands" on page 2781.
*CLS
Clear Status Clears the status byte by emptying the error queue and clearing all
the event registers
*ESE
*ESE?
Event Status
Enable
Sets and queries the bits in the enable register part of the standard
event status register
*ESR?
Event Status
Register
Queries and clears the event register part of the standard event
status register
*OPC
*OPC?
Operation
Complete
Sets the standard event status register to monitor the completion of
all commands. The query stops any new commands from being
processed until the current processing is complete, then returns a
‘1’
*PSC
*PSC?
Power-on
State Clear
Sets the power-on state so that it clears the service request enable
register and the event status enable register at power on
Spectrum Analyzer Mode User's &Programmer's Reference 2776

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)