Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 109)

Parameter Type Definitions
trigSource-(DaqAdcTriggerSource)
Definition Devices Description
DatsImmediate All
Post-trigger data acquisition begins immediately upon invocation of
the daqAdcArm command (no pre-trigger data acquisition is possible
with this trigger source)
DatsSoftware All
Post-trigger data acquisition begins upon a software command issued
by the calling application (see daqAdcSoftTrig)
DatsExternalTTL All
Post-trigger data acquisition begins on the selectable edge of an
external TTL signal. Refer to the applicable user’s manual for pinouts
showing the location of the external TTL signal connection.
DatsHardwareAnalog All
Post-trigger data acquisition begins upon a selectable criteria of the
input signal (above level, below level, rising edge, etc.)
DatsEnhancedTrig WaveBooks
Post-trigger data acquisition begins upon the detection of the multiple
channel trigger event defined by daqAdcSetTrigEnhanced
DatsSoftwareAnalog All
Post-trigger data acquisition begins upon a selectable criteria of the
input signal (above level, below level, rising edge, etc.)
DatsDigPattern
Supported within most
product series. Refer to your
product-specific user manual
regarding applicability.
Post-trigger data acquisition beings upon receiving a specified byte
length digital pattern on a P2 digital port.
DatsPulse WaveBook/516
Post-trigger data acquisition begins upon detection of a detection of a
pulse of specified duration and magnitude on an analog input channel.
adcRanges-(DaqAdcRangeT)
Definition Description
DarUni0to10V Sets acquisition range as unipolar from 0 to +10 Volt range
DarBiMinus5to5V Sets acquisition range as bipolar from -5 to +5 Volt range
DarUniPolarDE Sets acquisition range as unipolar differential
DarBiPolarDE Sets acquisition range as bipolar differential
DarUniPolarSE Sets acquisition range as unipolar single-ended
DarBiPolarSE Sets acquisition range as bipolar single-ended
trigSensitivity-(DaqEnhTrigSenseT)
Definition Description
DatdRisingEdge Trigger the channel on the rising edge of the signal at the specified level
DatdFallingEdge Trigger the channel on the falling edge of the signal at the specified level
DatdAboveLevel Trigger the channel when the signal is above the specified level
DatdBelowLowel Trigger the channel when the signal is below the specified level
DatdRisingEdgeLatched
Trigger the channel on the rising edge of the signal at the specified level and latch the channel
trigger event
DatdFallingEdgeLatched
Trigger the channel on the falling edge of the signal at the specified level and latch the channel
trigger event
DatdAboveLevelLatched
Trigger the channel when the signal is above at the specified level and latch the channel trigger
event
DatdBelowLevelLatched
Trigger the channel when the signal is below at the specified level and latch the channel trigger
event
The Latched values are trigger sensitivities which indicate that the device will maintain the
trigger event for the given channel, regardless of subsequent states of the input signal. After
the channel has triggered, it will remain in a triggered state while the current acquisition is
active. The non-latched trigger sensitivities will only indicate a channel trigger event while
the input signal for the given channel is in the triggered state.
Returns
DaqError See Daq Error Table.
Programmer’s Manual 908594 Daq API Command Reference 4.2-53