Trigger Sources Connections - Advantech MIC-1810 User Manual

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

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3.8.3

Trigger Sources Connections

External Digital (TTL) Trigger

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

1810 detects either a rising or falling edge on the External AI TTL trigger input signal

from screw terminal DTRG0 and DTRG1 on the screw terminal board. The trigger

signal is TTL-compatible.

Figure 3.10 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 3.11 External Analog Trigger Source Connection

MIC-1810 User Manual

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