VXi VT1529A/B 사용자 설명서
376 VT1422A Command Reference
SOURce
•
The variable pulse-width control for this channel is provided by the algorithm
language. When the algorithm executes an assignment statement to this channel,
the value assigned will be the pulse-width setting. For example:
the value assigned will be the pulse-width setting. For example:
O140 = .0025 /* set channel 43 pulse-width to 2.5 ms */
•
Send with VXIplug&play Function: hpe1422_cmd(...)
Usage
SOUR:PULS:PER .005,(@140)
set PWM pulse train to 200 Hz on
channel 40
channel 40
SOURce:PULSe:PERiod?
SOURce:PULSe:PERiod? (@<channel>)
returns the fixed pulse period value on
the pulse width modulated pulse channel in <channel>.
Parameters
Comments
•
If the channels specified are not on a Frequency/Totalize SCP, an error will
be generated.
•
Returned Value: numeric period. The type is float32.
•
Send with VXIplug&play Function: hpe1422_cmdReal64_Q(...)
SOURce:PULSe:WIDTh
SOURce:PULSe:WIDTh <pulse_width>,(@<ch_list>)
sets the fixed pulse width
value on the frequency modulated pulse channels in <ch_list>.
Parameters
Comments
•
If the channels specified are not on a Frequency/Totalize SCP, an error will
be generated.
•
*RST Condition: SOUR:FM:STATE OFF and SOUR:PULM:STATE OFF
•
Related Commands: SOUR:PULM:STATE, SOUR:PULS:POLarity
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
channel
string
100 - 163
none
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
pulse_width
numeric (float32)
7.87E-6 to 7.8125E-3
(238.4E-9 resolution)
(238.4E-9 resolution)
seconds
ch_list
string
100 - 163
none