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Logging Commands – commands for automatic and demand logging.
System Commands – commands for general system configuration parameters.
Communication Interface Commands – commands for controlling the inter
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face configuration(serial port, IR, and IEEE).
Date and Time Commands – commands for setting the date, time and the date
and time formats.
Password Commands – commands for enabling and disabling the password,
for setting the password, and for checking the state of the password.
Status Commands – commands to report the status and condition of the
instrument.
Each section provides the command structure (long and short format), a de
-
scription of the command purpose, a command example, an example of what
the command returns (as applicable to query commands), and notes specific to
the command. The following apply to each group of commands.
• Numeric data, specified by the mnemonic, <num>, uses ASCII characters
to represent numbers. Numbers may contain a plus or minus (‘+’ or ‘-’)
sign, decimal point (‘.’), and exponent (‘E’ or ‘e’) with its sign. If a frac-
tional component is received when only an integer is required, the number
is rounded to the nearest integer without any resulting error message. The
mnemonics DEF, MIN, and MAX are often acceptable for the default,
minimum, and maximum value respectively. Unit suffixes, such as V or
OHM, can be appended to numeric parameters and are accepted without
error but ignored.
• Unrecognized commands or commands with incorrect syntax or invalid
parameters generate error messages in the error queue.
•
Upper case letters designate syntax that is required when issuing the com
-
mand. Lower case letters are optional and may be omitted.
•
<> indicates a required parameter.
•
[] indicates optional parameters.
•
() indicates a group of parameters that must be used together.
•
For query commands, specifying the MIN, MAX, or DEF parameter
causes the instrument to respond with the minimum, maximum, or default
setting respectively.
•
For set commands, specifying the MIN, MAX, or DEF parameters causes
the instrument to use the minimum, maximum, or default setting respec
-
tively.
•
‘|’ indicates alternate parameter values.
•
<chn> indicates a channel number is required.
•
<dest chn> indicates a destination channel is required.
•
<n> indicates a number is required.
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8 Digital Communications Interface
Commands