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164 Multimeter Command Reference Chapter 3
*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