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Programming
140
Keysight 53147A/148A/149A Operating and Programming Guide
IEEE 488.2 Common Commands
The Common Commands are general-purpose commands that are common to all
instruments (as defined in IEEE 488.2). Common Commands are easy to recognize
because they all begin with an “ * ” (for example,
*RST
,
*IDN?
,
*OPC
). These
commands are generally not related to measurement configuration. They are used
for functions like resetting the instrument, identification, or synchronization.
lists the IEEE 488.2 Common Commands supported by the
Keysight 53147A/148A/149A in alphabetical order by mnemonic, name, and
function. More information concerning the operation of IEEE 488.2
status-reporting commands and structure can be found in the
section on page 173. Standard explanations of the IEEE 488.2 Common
Commands can be found in the
ANSI/IEEE Std. 488.2-1987, IEEE Standard
Codes, Formats, Protocols, and Common Commands
document
.
Table 3-1
IEEE 488.2 Common Commands
Mnemonic
Command Name
Function
*CLS
Clear Status
Clears all event status registers summarized in the status byte and
empties the Error Queue.
*DDT <arbitrary block>
Define Device Trigger
Command
Defines which command is executed when the instrument receives a
GET or *TRG command.
*DDT?
Define Device Trigger Query Queries which command is executed when the instrument receives a
GET or *TRG command.
*ESE <NRf>
Standard Event Status
Enable
Sets the Standard Event Status Enable Register.
*ESE?
Standard Event Status
Enable Query
Queries the Standard Event Status Enable Register.
*ESR?
Event Status Register Query Queries and then clears the Standard Event Status Register.
*IDN?
Identification Query
Queries the instrument’s identification.
*IST?
Instrument Status
Query
Queries the current state of the parallel poll response (Instrument
Status).
*OPC
Operation Complete
Causes the instrument to set the operation complete bit in the
Standard Event Status Register when all pending operations (see
Note at end of table) are finished.
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