Agilent Technologies E1441A user service Idn?, Opc?, OPT? option, Comments • Coupled command: No

*IDN?

*IDN? returns identification information for the Agilent E1441A. The response consists of four fields:

HEWLETT-PACKARD,E1441A,0,A.01.00-A.01.09

The first two fields identify this instrument as model number Agilent E1441A manufactured by Agilent Technologies (Agilent spun off of HP in November 1999; firmware will still say Hewlett-Packard). The third field is 0 since the serial number of the Agilent E1441A is unknown to the firmware. The last field indicates the revision level of the inguard-outguard firmware.

Note The firmware revision field will change whenever the firmware is revised. A.01.00-A.01.00 is the initial revision. The first two digits indicate the major revision number, and increment when functional changes are made. The last two digits indicate the functional fix level.

Comments • Coupled command: No

•*RST Condition: none

•Power-On Condition: register is cleared

*OPC

*OPC causes the Agilent E1441A to wait for all pending operations to complete. The Operation Complete bit (bit 0) in the Standard Event Status Register is then set.

Comments • Coupled command: No

•Related commands: *OPC?, *WAI

•*RST Condition: none

*OPC?

*OPC? causes the Agilent E1441A to wait for all pending operations to complete. A single ASCII "1" is then placed in the output queue.

Comments • Coupled command: No

•Related commands: *OPC, *WAI

•*RST Condition: none

*OPT? (option 001)

*OPT? queries the presence of the Phase-Lock option (option 001). Returns "1:PLL" if the option is present or "0" if the option is not present. The "10 MHz Ref" In and Out BNC connectors accompany this option.

126 Agilent E1441A SCPI Command Reference Chapter 3