Справочник Пользователя для National Instruments 321645c-01
Chapter 2
Function Reference — WFM_Chan_Control
NI-DAQ FRM for PC Compatibles
2-402
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National Instruments Corporation
WFM_Chan_Control
Format
status = WFM_Chan_Control (deviceNumber, chan, operation)
Purpose
Temporarily halts or restarts waveform generation for a single analog output channel.
Parameters
Input
Parameter Discussion
chan is the analog output channel to be paused or restarted.
Range:
0 or 1 for most devices.
0 through 5 for AT-AO-6.
0 through 9 for AT-AO-10.
0 through 5 for AT-AO-6.
0 through 9 for AT-AO-10.
operation selects the operation to be performed on the output channel.
operation = 2 (PAUSE):
operation = 2 (PAUSE):
Temporarily halts waveform generation for the output
channel. The last voltage available on the analog output
channel is maintained indefinitely.
channel. The last voltage available on the analog output
channel is maintained indefinitely.
operation = 4 (RESUME):
Restarts waveform generation for the output channel
previously halted by operation = PAUSE.
previously halted by operation = PAUSE.
Using This Function
Note
This function does not support E Series devices.
When you have halted a waveform generation has been halted by executing PAUSE, the
RESUME operation restarts the waveform exactly at the point in your buffer where it left off.
RESUME operation restarts the waveform exactly at the point in your buffer where it left off.
Name
Type
Description
deviceNumber
i16
assigned by configuration utility
chan
i16
analog output channel
operation
i16
pause or resume