Contec AI-1604CI2-PCI, User Manual

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4. Functions
46
AI-1604CI2-PCI
1. Setting the Conversion Conditions
First, set the conditions for executing analog input.
Resolution
“Resolution” signifies the number of bits used by an analog input device to represent analog signals.
The higher the resolution, the more finely the voltage range is segmented, allowing the device to
convert analog values to digital equivalents more precisely.
A device with a resolution of 12bit divides the range width into 4096 segments.
When the device covers the range of 0 - 10V, the minimum unit of converted voltages is
10÷4096
≈
2.44mV.
If the device has a resolution of 16bit, it is 10÷65536
≈
0.153mV instead.
AI-1604CI2-PCI : The resolution is 16bit.
Input Mode
Input mode of this product is single-ended input. There is no necessity for setting by software.
Channel
“Channel” represents individual channel No. for analog input signal.
For channel No., see “How to connect the connectors” - “Connector Pin Assignment” in Chapter 3
"External Connection".
For the channel selection, specify the channel No. or the number of channel which you want to convert A
into D (channel consecutive from channel 0)