Specifications

Chapter 16 205
Command Reference
*ESR?
16. Command Reference
*ESR?
Syntax *ESR?
Description Returns the value of the Standard Event Status register. Executing this command clears the
current register value. (Query only)
Query response {numeric}<newline><^END>
Equivalent key
sequence
No equivalent keys are available on the front panel.
*IDN?
Syntax *IDN?
Description Returns the product information for the 4287A, including the manufacturer, model number,
and firmware version number. (Query only)
Query response {string 1},{string 2},{string 3},{string 4}<newline><^END>
The returned data consists of the following items:
{string 1} Manufacturer. “Agilent Technologies” is always read out.
{string 2} Model number. “4287A” is always read out.
{string 3} “00000000” is always read out.
{string 4} Firmware version number (example: 01.00).
Equivalent key
sequence
No equivalent keys are available on the front panel.
*OPC
Syntax *OPC
Description Sets the OPC bit (bit 0) in the Standard Event Status register when all pending operations
are completed. (No query)
Equivalent key
sequence
No equivalent keys are available on the front panel.
*OPC?
Syntax *OPC?
Description Reads out 1 when all pending operations are completed. (Query only)
Query response {1}<newline><^END>
Equivalent key
sequence
No equivalent keys are available on the front panel.