Measurement-computing CIO-PDISO8 Uživatelský manuál stáhnout pdf (Strana 15)

CIO-PDISO8 User's Guide Functional Details

Isolated inputs

The CIO-PDISO8 has eight isolated input channels. A schematic of a single channel is shown in Figure 10. The

signals are routed through a bridge rectifier so that the inputs are not polarity sensitive.

Figure 10. Isolated input schematic - simplified

Extending the input range

To extend the input range beyond the 5-28V specified, add an external resistor. Figure 11 shows the resistor and

the equations used to calculate resistor values for a given Vin.

Figure 11. Input range-extending resistor

For more information on digital signal connections

For more information on digital signal connections and digital I/O techniques, refer to the Guide to Signal

Connections. This document is available on our web site at available on our web site at

www.mccdaq.com/signals/signals.pdf).

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Measurement-computing CIO-PDISO8 Uživatelský manuál Strana 15