beautypg.com

Daqsettriggerevent – Measurement Computing Data Acquisition Systems rev.10.4 User Manual

Page 302

background image

4.6-24 Daq API Command Reference

908594

Programmer’s

Manual



daqSetTriggerEvent

Also See: daqAdcSetScan,

daqAdcSetTrig, daqAdcSetTrigEnhanced

Format

daqSetTriggerEvent(handle, trigSource, trigSensitivity, channel, gainCode,
flags, channelType, level, variance, event)

Purpose

daqSetTriggerEvent

sets an acquisition trigger start event or an acquisition stop event.

Parameter Summary

Parameter Type

Description

handle

DaqHandleT

Handle to the device for which the trigger event is to be
configured

trigSource DaqAdcTriggerSource

Trigger source

trigSensitivity DaqEnhTrigSensT

Trigger sense and direction

channel DWORD

Actual channel number of the trigger channel (NOT the
scan list location)

gainCode DaqAdcGain Trigger channel gain code
flags DWORD

Trigger channel flags

channelType DaqChannelType Type of channel
level FLOAT

Trigger level in expected engineering units of the
channel type (Volts, Counts, or Deg C)

variance

FLOAT

Variance in the trigger

event DaqTriggerEvent

Trigger event

Parameter Values

handle:

obtained from the DaqOpen function

trigSource:

see table below

trigSenseitivity:

see table below

channel:

valid values range from 0 to 271

gainCode: s

ee ADC Gain Definition table for gain parameter values

flags: s

ee ADC Flag Definition table for flags parameter values

channelType:

see table below

level:

valid values depend on channel type—see channelType table below

variance:

valid values depend on channel type—see channelType table below

event:

valid values indicate either a start trigger event (daqStartEvent) or a stop trigger event

(daqStopEvent)