Tektronix WCA230A, Programmer'S Manual

Page: 36 / 678

Command Syntax
2- 10
WCA230A & WCA280A Programmer Manual
IEEE 488.2 Common Commands
ANSI/IEEE Standard 488.2 defines the codes, formats, protocols, and usage of
common commands and queries used on the interface between the controller and
the instruments. The analyzer complies with this standard.
The syntax for an IEEE 488.2 common command is an asterisk (*) followed by a
command and, optionally, a space and parameter value. The syntax for an
IEEE 488.2 common query is an asterisk (*) followed by a query and a question
mark. All of the common commands and queries are listed in the last part of the
Syntax and Commands section. The following are examples of common
commands:
H
*ESE 16
H
*CLS
The following are examples of common queries:
H
*ESR?
H *IDN?
Constructed Mnemonics
Some header mnemonics specify one of a range of mnemonics. For example, a
channel mnemonic can be either
CALCulate1
,
CALCulate2
,
CALCulate3
, or
CALCulate4
. You use these mnemonics in the command just as you do any other
mnemonic. For example, there is a
:CALCulate1:MARKer:MODE
command, and
there is also a
:CALCulate2:MARKer:MODE
command. In the command
descriptions, this list of choices is abbreviated as
CALCulate<x>
. The value of
<x> is the upper range of valid suffixes. If the numeric suffix is omitted, the
analyzer uses the default value of “1”.
Table 2- 6: Constructed mnemonics
Symbol Meaning
CALCulate<x> A view specifier where <x> = 1 to 4.
DLINe<x> A horizontal display line specifier where <x> = 1 or 2.
VLINe<x> A vertical display line specifier where <x> = 1 or 2.
MARKer<x> A marker specifier where <x> = 1 or 2.
TRACe<x>
DATA<x>
A trace specifier where <x> = 1 or 2.
Description
Command and Query
Structure