Calculate[1|2|3|4]:Marker:functioncommand/Query - Agilent Technologies 35670A Manual

Dynamic signal analyzer gpib programming

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Sets or queries completion of all pending overlapped commands.

Command Syntax:

Example Statements:

Query Syntax:

Return Format:

Attribute Summary:

Description:

Some commands are processed sequentially by the analyzer. A sequential command holds off the

processing of subsequent commands until it has been completely processed. However, some commands

do not hold off the processing of subsequent commands. These commands are called overlapped

commands. At times, overlapped commands require synchronization. The Attribute Summary for each

command indicates whether it requires synchronization.

The analyzer uses the No Pending Operation (NPO) flag to keep track of overlapped commands that are

still pending (that is, not completed). The NPO flag is reset to 0 when an overlapped command is

pending. It is set to 1 when no overlapped commands are pending. You cannot read the NPO flag

directly, but you can use *OPC and *OPC? to tell when the flag is set to 1.

If you use *OPC, bit 0 of the Event Status event register is set to 1 when the NPO flag is set to 1. This

allows the analyzer to generate a service request when all pending overlapped commands are completed

(assuming you have enabled bit 0 of the Event Status register and bit 5 of the Status Byte register).

If you use *OPC?, +1 is placed in the output queue when the NPO flag is set to 1. This allows you to

effectively pause the controller until all pending overlapped commands are completed. It must wait until

the response is placed in the queue before it can continue.

OUTPUT 711;"*Opc"

OUTPUT 711;"*OPC"

not applicable

Synchronization Required:

Preset State:

not applicable

SCPI Compliance:

Common Commands

command/query