User`s guide

Universal Library User's Guide Analog Input Boards - PCI-DAS6000 Series

Triggering

Trigger functions and methods supported

UL: cbSetTrigger()

UL for .NET: SetTrigger()

Trigger argument values

TrigType TRIGPOSEDGE, TRIGNEGEDGE, GATEHIGH, GATELOW

For the PCI-DAS6030, PCI-DAS6031, PCI-DAS6032, PCI-DAS6033, PCI-

DAS6040, PCI-DAS6052, PCI-DAS6070 and PCI-DAS6071, the following

additional argument values are valid:

TRIGABOVE, TRIGBELOW, GATENEGHYS, GATEPOSHYS, GATEABOVE, GATEBELOW,

GATEINWINDOW, GATEOUTWINDOW

Threshold PCI-DAS6040, PCI-DAS6070 and PCI-DAS6071

0 to 255

PCI-DAS6030, PCI-DAS6031, PCI-DAS6032, PCI-DAS6033, and

PCI-DAS6052

0 to 4095

Event notification

Event notification functions and methods supported

UL: cbEnableEvent(), cbDisableEvent()

UL for .NET: EnableEvent(), DisableEvent()

Event notification argument values

EventType ON_SCAN_ERROR, ON_PRETRIGGER*, ON_DATA_AVAILABLE, ON_END_OF_AI_SCAN,

ON_END_OF_AO_SCAN**

*Note that the EventData for ON_PRETRIGGER events may not be accurate. In general, this value will be below

the actual number of pretrigger samples available in the buffer.

**Not supported for PCI-DAS6013, PCI-DAS6023, PCI-DAS6032, PCI-DAS6033, and PCI-DAS6034.

Hardware considerations

Advanced timing and control configuration

You can access the advanced features provided by the Auxiliary Input/Output and DAQ-Sync interfaces

through the board configuration page of InstaCal and the UL functions cbGetSignal() and

cbSelectSignal(), or the UL for .NET methods GetSignal() and SelectSignal()*.

ADC_TB_SRC and DAC_TB_SRC are intended to synchronize the timebase of the analog input and output pacers

across two or more boards. Internal calculations of sampling and update rates assume that the external

timebase has the same frequency as its internal clock. Adjust sample rates to compensate for differences in

clock frequencies.

For example, if the external timebase has a frequency of 10 MHz on a board that has an internal clock

frequency of 40 MHz, the scan function samples or updates at a rate of about 1/4 the rate entered. However,

while compensating for differences in the external timebase and internal clock frequency, if the rate entered

results in an invalid pacer count, the function returns a BADRATE error.

*Although the PCI-DAS6013 and PCI-DAS6014 both support cbSelectSignal/SelectSignal(), these

boards do not support DAQ-Sync. Therefore: