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• Parameter types: The following are some of the more common parameter types:

<b> Boolean: Used to enable or disable an instrument operation. 0 or OFF dis-

ables the operation, and 1 or ON enables the operation. Example:

:CURRent:AC:RANGe:AUTO ON Enable auto ranging

<name> Name parameter: Select a parameter name from a listed group. Example:

<name> = NEVer

= NEXt

:TRACe:FEED:CONTrol NEXt

<NRf> Numeric representation format: This parameter is a number that can be ex-

pressed as an integer (e.g., 8) a real number (e.g., 23.6) or an exponent

(2.3E6). Example:

:SYSTem:KEY 16 Press TEMP key from over the bus

<n> Numeric value: A numeric value parameter can consist of an NRf number or

one of the following name parameters: DEFault, MINimum, MAXimum.

When the DEFault parameter is used, the instrument is programmed to the

*RST default value. When the MINimum parameter is used, the instrument

is programmed to the lowest allowable value. When the MAXimum param-

eter is used, the instrument is programmed to the largest allowable value. Ex-

amples:

:TRIGger:TIMer 0.1 Sets timer to 100 msec.

:TRIGger:TIMer DEFault Sets timer to 0.1 sec.

:TRIGger:TIMer MINimum Sets timer to 1 msec.

:TRIGger:TIMer MAXimum Sets timer to 999999.999 sec.

<list> List: Specify one or more switching channels. Examples:

:ROUTe:SCAN (@1:10) Specify scan list (1-10).

:ROUTe:SCAN (@2,4,6) Specify scan list (2, 4, and 6).

• Angle Brackets < >: Angle brackets (< >) are used to denote a parameter type. Do not

include the brackets in the program message. For example:

:HOLD:STATe <b>

The <b> indicates that a Boolean-type parameter is required. Thus, to enable the Hold

feature, you must send the command with the ON or 1 parameter as follows.

:HOLD:STATe ON or 1

Remote Operation 4-33

Keithley 2000 User Manual

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