Digital General Purpose Input and Output

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Overview

This is a sample for digital input/output of AIO devices.

This sample program requires selection of a device with digital input/output function.

Sample specification	* This is the initial value of the sample program. Please note that it is different from the initial value of the driver.
Program name	./digita_io
I/O direction	0 (Port0: DI, Port1: DI)
Port No.	0
Bit No.	0
Input data	0
Output Data	0

Step to Use

1. Specify the desired program name, run the program, and a CUI(Character User Interface) menu that looks like the one above will appear.
Appearance may vary depending on software version.

2. Initialize

  - When selecting the command [1: AioInit], you can specify the device name.
    Notifies the device driver to start using the specified device.
    When specifying the device name, AioInit will be executed and the CUI menu will be displayed again.

- If you are using a device that allows you to set the input/output direction of general-purpose digital functions,
you can switch the input/output direction by selecting the command [3 : AioSetDioDirection].

Please see AioSetDioDirection function for details.

3. Processing of general-purpose digital input

  - For 1 port (8 bits) input,
    When selecting the command [4 : AioInputDiByte] and specifying the desired port number in decimal (Dec), the input data will be displayed in hexadecimal (Hex).

  - For 1 bit input,
    When selecting the command [5 : AioInputDiBit] and specifying the desired bit number in decimal (Dec), the input data will be displayed.

4. Processing of general-purpose digital output

  - For 1 port (8 bits) output,
    When selecting the command [6 : AioOutputDoByte], you can output digitally in 8 bit units.
    When specifying the desired port number in decimal (Dec) and the desired output data in hexadecimal (Hex), the device will output a digital signal.

  - For 1 bit output,
    When selecting the command [7 : AioOutputDoBit], you can output digitally in 1 bit units.
    When specifying the desired bit number in decimal (Dec) and the desired output data, the device will output a digital signal.

5. Exit

  - When selecting the command [8 : AioExit], it will notify the device driver that the use of the current device is complete.
    Data can be acquired from different devices (e.g. AIO001, etc.) without terminating the program.
    When AioExit is executed, the CUI menu will be displayed again.

- To perform data acquisition processing again, select the command [1 : AioInit] and specify a new device name to perform device initialization processing

6. Processing to terminate the program

- When selecting the command [q : Quit], the program will terminate.