Keithley 6430, Instruction Manual

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13-10 Remote Operations
LOCAL key
The LOCAL key cancels the remote state and restores local operation of the instrument.
Pressing the LOCAL key also turns off the REM indicator and returns the display to normal
if a user-de fi ned message was displayed.
If the LLO (Local Lockout) command is in effect, the LOCAL key is also inoperative.
For safety reasons, the OUTPUT key can be used to turn the output off while in LLO.
Programming syntax
The information in this section covers syntax for both common commands and SCPI com-
mands. For information not covered here, see the IEEE- 488.2 and SCPI standards. See Section
15 and Section 17 for more details on common and SCPI commands, respectively.
Command words
Program messages are made up of one or more command words.
Commands and command parameters
Common commands and SCPI commands may or may not use a parameter. The following
are some examples:
*SAV <NRf> Parameter (NRf) required
*RST No parameter used
:CALCulate1:STATe <b> Parameter <b> required
:SYSTem:PRESet No parameter used
NOTE
At least one space between the command word and the parameter is required.
Brackets [ ]
— Some command words are enclosed in brackets ([ ]). These brackets are used
to denote an optional command word that does not need to be included in the program mes-
sage. For example:
:INITiate[:IMMediate]
These brackets indicate that :IMMediate is implied (optional) and does not have to be used.
Thus, the above command can be sent in one of two ways:
:INITiate
or
:INITiate:IMMediate
Notice that the optional command is used without the brackets. When using optional com-
mand words in your program, do not include the brackets.