Technical data

80 Agilent Connectivity Guide
4 Connecting Instruments to USB
2 Select a command, or enter one in the Command area.
3 Click Send & Read to send the command to the instrument and read
a response. Alternatively, click Send Command and Read
Response. The Instrument Session History area displays the results.
NOTE
If a time-out occurs when sending/receiving commands, change the
default Time-out setting of 5000ms in the Interact>Options dialog.
488.2 Commands
Meaning
*IDN?
Identification query returns manufacturer, model, serial number, and firmware
level or equivalent.
*CLS
Clear Status clears status data structures, and forces the device to the
Operation Complete query idle state.
*OPC?
Operation Complete query places an ASCII character “1” into the device’s
Output Queue when all pending selected device operations have been finished.
*RCL
Recall restores the settings of a device from a copy stored in local memory.
*RST
Reset performs a device reset, which sets the device-specific functions to a
known state that is independent of the past-use history of the device.
*SAV
Save stores the current settings of the device in local memory.
*STB?
Read Status Byte query allows the programmer to read the status byte and
master Summary Status bit.
*TRG
Trigger signals the transition of the Device Trigger (DT) function to the Device
Trigger Active State (DTAS).
*TST?
Self-test returns zero indicating the test completed with no errors. A return value
not equal to zero indicates the test is not completed or completed with errors.
SCPI Commands
SYST:ERR?
This message requests the next entry from the instrument’s error/event queue.
Items in this queue contain an integer in the range [-32768, 32767] denoting an
error/event number and associated descriptive text. Negative numbers are
reserved by the SCPI standard; positive numbers are instrument-dependent. A
value of zero indicates that no error or event has occurred.
NOTE
Some instruments do not recognize any/all 488.2 commands.