niDMM_ConfigureTrigger

NI-DMM C/CVI/VB

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.
Note  To determine which values are supported by each device, refer to the LabWindows/CVI Trigger Routing section.
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.