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72 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP
• Send with VXIplug&play Function: hpe14XX_cmd(...)
Usage SOUR:PULS:WIDTH 2.50E-3,(@143)
set fixed pulse width of 2.5 msec
on channel 43
SOURce:PULSe:WIDTh?
SOURce:PULSe:WIDTh? (@<
ch_list
>) returns the fixed pulse width value
on a frequency modulated pulse channel.
Parameters
Comments • Channel must specify a single channel.
• If the channels specified are not on a Frequency/Totalize SCP, an error
will be generated.
• Returned Value: returns the numeric pulse width. The type is float32.
• Send with VXIplug&play Function: hpe14XX_cmdReal64_Q(...)
SOURce:RPULse:POSition[:ANGLe]
SOURce:RPULse:POSition[:ANGLe] <
degrees
>,(@<
ch_list
>) sets the
angular position of the rotational output pulse before the INIT command that
starts algorithm execution. With the pulse position thus fixed, the pulse width
(in angle or time depending on how SOUR:RPUL:VARType is set) will be
controlled by the algorithm.
Parameters
Comments • Channels in <ch_list> must be referenced in a SOUR:FUNC:RPUL
command before the next INIT command. Related error messages:
3113, "Channel specified is not in same SCP as reference channel."
3114, "First channel in SCP can not be used in RPULse output channel
list."
• <degrees> has a resolution of 1 degree. The pulse is positioned at
<degrees> modulo 360.
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
channel string 100 - 163 none
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
degrees numeric (int32)
-33,554,430 to 33,554,430 degrees
ch_list string 100 - 163 none