RIGOL DG1000Z Series - Manual (Page 43)

Chapter 2 Command System RIGOL
DG1000Z Programming Guide 2-31
*OPC
Syntax *OPC
*OPC?
Description Set the OPC (operation complete) bit in the standard event register after all the
previous commands that have been sent are executed.
Query whether all the previous commands that have been sent are executed. If yes,
return 1 to the output buffer.
Explanation  Here, “operation complete” refers to that all the previous commands that have
been sent, including the *OPC command, are executed.
 You can also use the *OPC (operation complete) or *OPC? (operation complete
query) command to set the system to output signal when finishing the sweep
or burst. The *OPC commands sets the OPC (operation complete) bit in the
standard event register after all the previous commands that have been sent
are executed; when the bus is used to trigger the sweep or burst, the system
can execute other commands before this bit is set. The *OPC? command
returns 1 to the output buffer after all the previous commands that have been
sent are executed and the system cannot execute any other command before
this command is completed.
 Sending the *OPC? command (query command) and reading the result can
ensure synchronization.
 When setting the instrument by programming (by executing command strings),
taking the *OPC command as the last command of the command queue can
determine when the command queue is completed (the OPC (operation
complete) bit in the standard event register is set after the command queue is
completed).
Return Format The query returns 1 or 0.
Example *OPC /*Configure the instrument to set the OPC (operation complete) bit in the
standard event register after all the previous commands that have been
sent are executed*/
*OPC? /*Query whether all the previous commands that have been sent are
executed. If yes, return 1 to the output buffer*/
*OPT?
Syntax *OPT?
Description Query whether the 16M internal memory option (Arb 16M) has been installed.
Return Format The query returns OFFICAL (the 16M internal memory option has been installed) or
UNINSTALL (the 16M internal memory option is not installed).