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E1437A
ASCII Overview and Commands
Command Syntax
This section describes the syntax elements used in the ASCII command
reference.
Special Syntactic Elements
Some syntactic elements have special meanings:
• colon (:) The colon is a part of the program header (command or query) and
does not imply a heirarchy such as that which exists with SCPI commands for
other instruments.
• comma (,) A comma separates the data sent with a command or returned with
a response. For example the FILTER:SETUP command requires two values: one to
select the filter signal bandwidth and one to select extra decimation. A message to
select 460 kHz bandwidth and a decreased sample rate of 1.28 MHz would be:
FILTER:SETUP 4,1
• <WSP> One white space is required to separate a program headers (the
command or query) from its parameters. For example the command
"FILTER:SETUP 4,1" contains a white space between the program header
(FILTER:SETUP) and the parameters (4,1). White space characters are not
allowed within the program header.
Conventions
Syntax and return format description use the following conventions:
• < > Angle brackets enclose the names of items that need further definition. The
definition will be included in accompanying text.
• ::= "is defined as" When two items are separated by this synbol, the second item
replaces the first in any statement that contains the first item. For example, A::=B
indicates that B replaces A in any statment that contains A.
• "or" When items in a list are separated by this symbol one and only one of the
items can be chosen from the list For example, AB indicates that A or B can be
chosen, but not both.
• ... an ellipsis (trailing dots) is used to indicate that the preceding element may be
repeated one or more time.
The command interpreter is not case sensitive. No short forms for keywords
are allowed
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