Advantech PCI-1710HG Specifiche Scaricare il pdf (Pagina 52)

Fig. 3-2 Single-ended input channel connection

Differential Channel Connections

The differential input channels operate with two signal wires for each

channel, and the voltage difference between both signal wires is

measured. On the PCI-1710/1710L/1710HG/1710HGL/1716/1716L,

when all channels are configured to differential input, up to 8 analog

channels are available.

If one side of the signal source is connected to a local ground, the

signal source is ground-referenced. Therefore, the ground of the

signal source and the ground of the card will not be exactly of the

same voltage. The difference between the ground voltages forms a

common-mode voltage (V cm ).

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Advantech PCI-1710HG Specifiche Pagina 52