Command Synchronization; Calculate[1|2|3|4]:Cfit:order:polescommand/Query; Display[:Window[1|2|3|4]]:Trace:x[:Scale]:Autocommand/Query - Agilent Technologies 35670A Manual

Queues enhance the exchange of messages between the Agilent 35670A and other devices on the bus.
The Agilent 35670 contains three queues.
The input queue holds up to 128 bytes.
The error queue temporarily stores up to 5 error messages.
The output queue temporarily stores a single response message until it is read by a controller.
For additional information about the use of queues in exchanging messages between an analyzer and an
external controller, see the GPIB Programmer's Guide.
Device commands can be divided into two broad classes:
sequential commands
overlapped commands
Most device commands that you send to the analyzer are processed sequentially. A sequential command
holds off the processing of subsequent commands until it has been completely processed. Some
commands do not hold off the processing of subsequent commands. These are called overlapped
commands and in many situations they require synchronization.
See the GPIB Programmer's Guide for more information and examples about command synchronization.
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