NF Wave Factory WF1947, Instruction Manual

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WF1947/WF1948 Instruction Manual (External Control)
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2.1.2.2 Subsystem commands
The subsystem commands are used to execute specific functions of the equipment. Each subsystem command
consists of a root keyword, one or more lower-level keywords, a parameter, and a suffix.
The followings show examples of command and query.
:OUTPut:STATe ON
:OUTPut:STATe?
OUTPut is the root-level keyword linking a second-level keyword, and ON is a parameter.
2.1.2.3 Subsystem command tree
(A) Structure of command tree
In SCPI, a hierarchical structure similar to the one used in a file system is used for the subsystem commands.
This command structure is called "command tree."
Figure 2.2 shows an example of a command tree of subsystem commands.
Figure 2.2 Example of Subsystem Command Tree
In the command tree in Figure 2.2, the keywords nearest the top ([:SOURce], [:OUTPut], and [:SYSTem]) are
root level keywords, and to reach the keywords on the lower levels, a specific path must be followed. For
example, to access ":OFFSet", the path must be [:SOURce] - :VOLTage - [:LEVel] - [:IMMediate] - :OFFSet.
root
[:SOURce] :VOLTage [:LEVel] [:IMMediate] [:AMPLitude]
[:OUTPut]
[:SYSTem]
:FREQuency
:PHASe
[:STATe]
:ERRor
[:FIXed] :OFFSET