Diamond Onyx-MM-DIO Digital Input

Onyx-MM-DIO Digital Input block


Simulink® Real-Time™ Library for Diamond


Onyx-MM-DIO boards have two digital I/O chips, each with three 8-bit digital I/O ports, for a total of 48 I/O lines. Each port can be configured independently for either input or output. Use a separate driver block for each port. Select the digital input driver block for a given port to configure the port for input.

Scaling Input to Output

I/O Module Input

Block Output Data Type




TTL low = 0.0
TTL high = 1.0

Block Parameters

Channel vector

Enter numbers between 1 and 8 to select the digital input lines used with this port. This driver allows the selection of individual digital input lines in arbitrary order. The number of elements defines the number of digital lines used.

For example, to use all the digital inputs for the current port, enter


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


From the list choose A, B, or C.


From the list choose 1 or 2.

Sample time

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

Base address

Enter the base address of the board. This entry must correspond to the DIP switch setting on the board. For example, if the DIP switch setting is 300 (hexadecimal), enter 0x300.

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