NF Wave Factory WF1947, Instruction Manual

Page: 30 / 316

1
WF1947/WF1948 Instruction Manual (External Control)
10
2.1 Overview of Commands
The commands of WF1947/WF1948 comply with IEEE488.2 and SCPI (version 1999.0). SCPI defines the
communication method used between controllers and measurement equipment. For general information about
SCPI, refer to other appropriate documents.
2.1.1 Conventions
For convenience in describing the commands, the following conventions are used in this document.
< > < > indicates something other than itself. In the case of parameter or response data, the
abbreviation of the type is enclosed in < > .
[ ]
The items enclosed in [ ] are optional, and can be omitted.
{abc|xyz}
Indicates that either "abc" or "xyz" can be used.
[abc|xyz]
Indicates that either "abc" or "xyz" can be used,
but that both are optional and can be omitted.
Uppercase, lowercase
Keywords in a mixture of uppercase and lowercase letters are the long form, while keywords in
uppercase letters only are the short form.
2.1.2 Commands
The program messages of WF1947/WF1948 consist of common commands and subsystem commands. This
section describes the format of each command, the subsystem command tree, and so on.
2.1.2.1
Common commands
The common commands are to control the comprehensive functions of the equipment.
Figure 2.1 shows the syntax of common commands.
Figure 2.1 Common Command Syntax
The keyword in Figure 2.1 consists of three alphabetic characters. Here, SP is a space character (ASCII code
32).
?
SP
Keyword Parameter