niDMM_ConfigureTrigger
ViStatus = niDMM_ConfigureTrigger(ViSession Instrument_Handle, ViInt32 Trigger_Source, ViReal64 Trigger_Delay)
Purpose
Configures the DMM Trigger_Source and Trigger_Delay. Refer to
Triggering
and
Using Switches for more information.
Parameters
| Input |
| Name |
Type |
Description |
| Instrument_Handle |
ViSession |
Identifies a particular instrument session. You obtain the Instrument_Handle parameter from niDMM_init or niDMM_InitWithOptions. The default is None.
|
| Trigger_Source |
ViInt32 |
Specifies the Trigger_Source that initiates the acquisition. The driver sets
NIDMM_ATTR_TRIGGER_SOURCE to this value. Software configures the DMM to wait until
niDMM_SendSoftwareTrigger is called before triggering the DMM.
|
| Trigger_Delay |
ViReal64 |
Specifies the time that the DMM waits after it has received a trigger before taking a measurement. The driver sets the
NIDMM_ATTR_TRIGGER_DELAY attribute to this value. By default, Trigger_Delay is NIDMM_VAL_AUTO_DELAY (-1), which means the DMM waits an appropriate settling time before taking the measurement. On the NI 4060, if you set Trigger_Delay to 0, the DMM does not settle before taking the measurement. The NI 4065 and NI 4070/4071/4072 use the value specified in Trigger_Delay as additional settling time.
 |
Note When using the NI 4050, Trigger_Delay must be set to NIDMM_VAL_AUTO_DELAY (-1). |
|
Return Value
| Name |
Type |
Description |
| Status |
ViStatus |
Reports the Status of this operation. To obtain a text description of the status code, call
niDMM_error_message. To obtain additional information concerning the error condition, use
niDMM_GetError. |