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NI EDIDS-2400 Series User Manual | © National Instruments | 57
3.3.3.5 Analog Signals to NI 9220 Analog Input Module
The DI Driver System supports an optional NI 9220 16-channel analog input module. The analog inputs are sampled
at an interval of 15 milliseconds. The analog inputs are filtered and converted to engineering units via the Analog
Input Setup Window . The engineering values can be used as inputs to a variety of functions throughout the DI Driver
System, such as lookup tables and rail pressure control.
The analog input channels are capable of directly measuring differ/- 10V signals. Therefore, each channel
has a positive and negative screw terminal connection. A COM terminal is provided as a common mode reference
for all sixteen (16) channels. Refer to the NI 9220 Operating Instructions and Specifications for detailed connection
diagrams and specifications.