Analog Output Connection - Advantech MIC-1816 Series User Manual

Analog Threshold Trigger
For analog input operations, an analog trigger event occurs when the MIC-1816
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). Users should connect analog signals from an external device or analog output
channel on board to external input signals ATRG0 and ATRG1. For MIC-1816, the
threshold level is set using a dedicated 16-bit DAC. The threshold level can be pro-
grammed by writing a voltage value to this DAC using software. The voltage value
can range from -10 V to 10 V.
Figure 2.11 External Analog Trigger Source Connection
2.8

Analog Output Connection

MIC-1816 provides two AO output channels. The internal precision -5 V or -10 V ref-
erence can be used to generate 0 ~ 5 V or 0 ~ 10 V analog output. Use an external
reference for other analog output ranges. The maximum reference input voltage is 10
V and the maximum output scaling is 10 V. Loading current for analog outputs must
not exceed 5 mA.
Figure 3.12 shows the configuration of analog output and external reference input
connections on MIC-1816.
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