Measurement Computing CIO-PDISO16 - Manual (Page 15)

CIO-PDISO16 User's Guide Functional Details
14
Extending the input range
To extend the input range beyond the ±28V specified, add an external resistor. Figure 8 shows the placement of
the external resistor (R ext) and the equations used to calculate resistor values for a given Vin.
1.6 K
Isolated input
Not polarized
R ext
V in
Figure 8. 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 ).