Opc - Keysight 8990B Programming Manual

2 IEEE-488 Command Reference

*OPC

The *OPC (OPeration Complete) command sets the "Operation Complete" bit (bit
0) in the Standard Event register when all pending operations have completed.
This command is used to synchronize your application with the 8990B.
Syntax
*OPC
Example
*OPC
Query
*OPC?
This query sends 1 to the output buffer when all pending operations have
completed.
Query example
*OPC?
54
?
This command sets the "Operation Complete" bit.
Waits until the completion of the current command and then
sends 1 to the output buffer.
Keysight 8990B Programming Guide