VXI VT1538A user manual SOURRPULseVARType?, SOURceRPULseWIDThANGLe, Parameters

SOUR:RPULSE:VART TIME,(@143:144) algorithm will control pulse width by TIME

SOUR:RPULse:VARType?

SOUR:RPULse:VARType? (@<channel>) returns the type of value that

will be controlled (varied) by the algorithm.

Parameters

Parameter	Parameter	Range of	Default
Name	Type	Values	Units
channel	string	100 - 163	none

Comments • <ch_list> must specify a single channel only

•Returns the string "TIME" "ANGL"

Usage SOUR:RPULSE:VART? (@145) returns the setting for chan 45

SOURce:RPULse:WIDTh[:ANGLe]

SOURce:RPULse:WIDTh[:ANGLe] <degrees>,(@<ch_list>) sets the width of the rotational output pulse before the INIT command that starts algorithm execution. With the pulse width thus fixed, the pulse position (in angle or time depending on how SOUR:RPUL:VARType is set) will be controlled by the algorithm.

Parameters

Parameter	Parameter	Range of	Default
Name	Type	Values	Units
degrees	numeric (uint32)	0 to 360	degrees
ch_list	string	100 - 163	none

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.

•Since the pulse width is specified in angle, changes in rotational velocity will not change the angular proportoin of the pulse. Of course, changes in rotational velocity do effect the pulse width as regards time.

Usage SOUR:RPULSE:WIDT:ANGL 260,(@147) preset channel 47 pulse width to

74 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP