Agilent Technologies 8504B, User Manual

Page: 140 / 296

FINAL TRIM SIZE : 7.5 in x 9.0 in
Programming
IEEE 488.2 Common Commands
*CLS
Clears the status byte , the event status register , and the event status register
B .
Syntax: *CLS
*ESE
Enables specic bits of event status register . Query
Syntax: *ESE{?|<value>}
Item Description
value 0 to 32767 (2
15-1
)
*ESR?
Returns the contents of the standard event status register .
Syntax: *ESR?
*IDN?
Outputs the identication string, \HEWLETT P A CKARD , HP 8504B ,0,X.XX",
where X.XX is the rmware revision.
Syntax: *IDN?
*OPC
T ells the reectometer to set bit 0, (OP eration Complete bit), in the event
status register when it completes all pending operations . When used in Query
form, the reectometer will output a 1 when the operation is complete .
Its use is enabled by issuing the command OPC; or OPC?; prior to an
OPC'able command. F or example , issuing OPC;SING; causes the OPC bit in
to be set at the completion of the single sweep . Issuing OPC?; instead causes
the reectometer to output a 1 when the sweep is completed. A ddressing the
reectometer to talk will then hold HP-IB trac until the sweep is completed
and the \1" has been accepted.
Syntax: *OPC
*PCB
Sets the HP-IB address which the reectometer uses to communicate with an
external controller .
Syntax: *PCB{?|<value>}
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