Trigger Setting

 

Perform setting for continuous input (sampling) and continuous output (generating)

Here are the setting for sampling and generating start condition

 


Polymorphic VI selector menu

Software (DI)

      Select to start sampling of digital input by performing the [Start] VI *1

External Trigger (DI)

      Select to start sampling of digital input with external trigger input after [Start] VI is executed *1

Pattern Matching

      Select to start sampling of digital input with pattern matching after [Start] VI is executed *1

Synchronization control signal (DI)

      Select to start sampling of digital input with synchronization control signal after [Start] VI is executed *1 *2

 

Software (DO)

      Select to start generating of digital output by performing the [Start] VI *1

External Trigger (DO)

      Select to start generating of digital output with external trigger input after [Start] VI is executed *1

Synchronization control signal (DO)

      Select to start generating of digital output with synchronization control signal after [Start] VI is executed *1 *2

 

Software (AI)

      Select to start sampling of analog input by performing the [Start] VI

External Trigger (AI)

      Select to start sampling of analog input with external trigger input after [Start] VI is executed

Level comparison (Voltage/Current)

      Select to start sampling of analog input by satisfying the specified [Voltage/Current] level after [Start] VI is executed

Level comparison (Binary Value)

      Select to start sampling of analog input by satisfying the specified [Binary Value] level after [Start] VI is executed

In Range comparison (Voltage/Current)

      Select to start sampling of analog input by [Voltage/Current] value within the specified range after [Start] VI is executed

In Range comparison (Binary Value)

      Select to start sampling of analog input by [Binary Value] value within the specified range after [Start] VI is executed

Out Range comparison (Voltage/Current)

      Select to start sampling of analog input by [Voltage/Current] value outside the specified range after [Start] VI is executed

Out Range comparison (Binary Value)

      Select to start sampling of analog input by [Binary Value] value outside the specified range after [Start] VI is executed

Synchronization control signal (AI)

      Select to start sampling of digital input with synchronization control signal after [Start] VI is executed *2

 

Software (AO)

      Select to start waveform output by performing the [Start] VI

External Trigger (AO)

      Select to start waveform output with external trigger input after [Start] VI is executed

Synchronization control signal (AO)

      Select to start waveform output with synchronization control signal after [Start] VI is executed *2

 

Software (CNT)

      Select to start sampling of counter input by performing the [Start] VI *3

21 External Trigger (CNT)

      Select to start sampling of counter input by inputting external trigger after [Start] VI is executed *3

22 Count match

      Select to start sampling of counter input with count match after [Start] VI is executed *3

23 Synchronization control signal (CNT)

      Select to start sampling of counter input with synchronization control signal after [Start] VI is executed *2 *3

 


*The type of trigger that can be selected for analog input and analog output varies depending on the device
  Please refer to [Device-specific Setting List]

*1 It can be set only with the following bus master type digital device
    PIO-32DM(PCI), DIO-32DM2-PE, DIO-32DM3-PE

*2 It can be set only with device that has a Synchronization Control Connector

*3 It can be set only with the following counter device with sampling function
    CNT32-8M(PCI), CNT32-4MT(LPCI)
    CNT-3208M-PE, CNT-3204MT-LPE
    CNT-3204IN-USB

 

What is binary value of analog input/output?

For example, if the resolution of analog device is 12 bit, as the operation of the hardware, the voltage width of set range will be divided into 4096 (12Bit), the divided value is called binary value.

Example: If the range is ±10V

The binary value 0 corresponds to -10V, the binary value 2047 corresponds to about 0V, the binary value 4095 corresponds to +10V, and the voltage difference between the binary values 0 and 1 is about 0.004883V (4.883mV)

The voltage value is easy to understand intuitively, but the binary value is directly used by hardware, and there is no calculation error when voltage conversion. So the value is more accurate.

And, current is the same.