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Example Arming for measurement
ARM:SOUR1 EXTernal Set arming source1 to be the EXT1 BNC
connector
INITiate Begin measurement, wait for arming pulse
ARM Arm start trigger immediately, don’t wait
for external pulse
[:STARt]:LEVel[<
chan
>]:NEGative <
voltage
>
ARM[:STARt]:LEVel[<chan>]:NEGative <voltage> selects the input voltage
level which will arm a measurement cycle. The ARM:LEVel:NEGative setting is
used only when either of the ARM:STARt:SOURce(s) is set to INTernal1 or
INTernal2, and the corresponding ARM:STARt:SLOPe<n> setting is NEGative or
EITHer. The value programmed is retained (but not used) when other sources are
selected, or when the corresponding ARM:STARt:SLOPe<n > setting is POSitive.
The allowable levels depend on the measurement range as set by the
SENSe:VOLTage:RANGe command.
Parameters
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
chan
numeric 1 | 2 none
level
numeric -102.2418 to 102.2418
MINimum | MAXimum
Volts
Comments • Executable while initiated: No
• Coupled Command: Yes. The command is coupled to the
ARM[:STARt]:SLOPe, ARM[:STARt]:SOURce, and SENSe:VOLTage:RANGe
commands. The level value is limited to the range limits.
• When POSitive and NEGative voltage levels are specified, the levels must be
separated by an amount defined by:
(50 mV / 1.0235V)
*
measurement range
This accounts for offset errors in the levels specified and enables the levels to be
detected.
• Related Commands: ARM:STARt:SOURce<n >,
ARM:STARt:SLOPe<n >
• *RST Condition: ARM:STARt:LEVel<n >:NEG -1.022418
ARM[:STARt]:LEVel[<
chan
>]:NEGative <
voltage
>
192 Command Reference ARM Subsystem