Quanser Q8 Digital Input

Q8 Digital Input block (not recommended)


Simulink® Real-Time™ Library of Drivers No Longer Recommended for Use.

To open this library, type xpcobsoletelib in the Command Window.

Scaling of Input to Output

Hardware Input

Block Output Data Type




TTL low=0
TTL high=1

Block Parameters

Channel vector

Enter a vector of numbers between 1 and 32. This driver allows you to enter channel numbers in arbitrary order. For example, to use the first, second and fifth digital channels for input, enter


Number the channels beginning with 1 even if this board manufacturer starts numbering the channels with 0.

The Q8 board has 32 digital channels. You can use each of these digital channels for input or output.


If you have a Q8 digital input and digital output block corresponding to the same board (the same PCI slot), do not use the same digital channel number in both blocks.

Sample time

Enter the base sample time or a multiple of the base sample time (-1 means sample time is inherited).

PCI slot

If only one board of this type is in the target computer, enter -1 to locate the board.

If two or more boards of this type are in the target computer, enter the bus number and the PCI slot number of the board associated with this driver block. Use the format [BusNumber,SlotNumber]. To determine the bus number and the PCI slot number, type:

tg = slrt;
getPCIInfo(tg, 'installed')

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