GetInput

Get a digital input state for the main board or a DIO option card.

bool GetInput(int bd, int input);

Parameters

• bd - 0 for main board or number of digital output card.
• input - input number (1-4) main board (1-8) option card.

Return Value

• Returns the result - true = input is on, false = input is off

Remarks

The main board or option card must already be opened by calling OpenMnBd first. This function returns the status of the memory buffer for the input. It is necessary to have communications code in place so that this memory to be updated regularly in an application. This should be done by using StartRepeatMulti, at the beginning of the application and providing a background function that calls MnbdRead.

Examples

if(GetInput(MNBD_DEV, 1) == true)
    DisplayText(0, 0, "Input 1 is ON");

if(GetInput(1, 4) == false)
    DisplayText(0, 0, "Card 1 Input 4 is OFF");

See Also

• StartRepeatMulti
• SetOutput
• SetOutputMask