Trigger Sources Connections - Advantech MIC-1810 User Manual

Intel core i3-6100u/celeron 3955u daq embedded automation computer

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3.9.2

Trigger Sources Connections

External Digital (TTL) Trigger

The MIC-1810 supports External digital (TTL) trigger to activate AO conversions for

continuous output mode. An external digital trigger event occurs when the MIC-1810

detects either a rising or falling edge on the External AO TTL trigger input signal from

the pin of connector. The user can define the type of trigger source as rising-edge or

falling-edge by software. The trigger signal is TTL-compatible.

Figure 3.14 External Digital Trigger Source Connection

Analog Threshold Trigger

For analog input operations, an analog trigger event occurs when the MIC-1810

detects a transition from above a threshold level to below a threshold level (falling

edge), or a transition from below a threshold level to above a threshold level (rising

edge). User should connect analog signals from external device or analog output

channel on board to external input signal ATRG0 and ATRG1. On the MIC-1810, the

threshold level is set using a dedicated 12-bit DAC. By software, you can program

the threshold level by writing a voltage value to this DAC; this value can range from

-10V to +10V.

Figure 3.15 External Analog Trigger Source Connection

MIC-1810 User Manual

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