*ESR?

*ESR? returns the value of the Standard Event Status Register. The register is then cleared (all bits 0).

Comments

Executable when Initiated: Yes

Coupled Command: No

*RST Condition: none

Power-On Condition: register is cleared

*IDN?

*IDN? returns identification information for the HP E1312A B-size or HP E1412A C-size multimeter. The response consists of four fields:

HEWLETT-PACKARD,E1312A,0,A.0x.0x-A.0x.0x (B-size)

HEWLETT-PACKARD,E1412A,0,A.0x.0x-A.0x.0x (C-size)

The first two fields identify this instrument as model number HP E1312A (or

HP E1412A) manufactured by Hewlett-Packard. The third field is 0 since the serial number of the multimeter 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 improvement level.

Comments

Executable when Initiated: Yes

Coupled Command: No

*RST Condition: none

Power-On Condition: register is cleared

*OPC

*OPC causes the HP E1312A and HP E1412A to wait for all pending operations to complete after which the Operation Complete bit (bit 0) in the Standard Event Status Register is set. The *OPC suspends any other activity on the bus until the multimeter completes all commands sent to it prior to the *OPC command.

Comments

Executable when Initiated: Yes

Coupled Command: No

Related Commands: *OPC?, *WAI

*RST Condition: none

164 Multimeter Command Reference

Chapter 3