Call Processing Event Synchronization; Description - Agilent Technologies 8960 10 Series Reference Manual

Call Processing Event Synchronization

February 14, 2000

Description

Synchronizing the test set with an external controller ensures that neither device does something before it is
supposed to, which can cause errors, or does something well after it could have, which wastes time.
Using the call processing subsystem overlapped command synchronization commands, the user can query the
test set to find out when an overlapped command operation is done (:DONE?, :OPC?), force the test set to not
execute any more commands until an overlapped command operation has completed (:WAIT), or simply force
an overlapped command to behave as a sequential command (:SEQ).
Pending Operation Flags
Associated with each overlapped command, the test set maintains a binary indicator known as a pending
operation flag. A pending operation flag is set true when the operation started by the overlapped command is
executing, and is set false when the operation is no longer executing.
NOTE In addition to the call processing subsystem overlapped commands, the test set also provides the
measurement-related INITiate <measurement> overlapped commands.
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Call Processing Event Synchronization
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