Before you begin this procedure, open your Semiconductor Device Control Add-On project in a large panel and create an NI 845x interface.
Complete the following steps to configure a DIO channel for an NI 845x interface.
Click Conf I/F to open the Hardware
Configuration tab of the large panel.
Select the NI 845x interface that you want to
add a protocol to and click Add Function.
Select Channel from the Choose
Function list, and select DIO from the
list of channels. Enter the name of the channel, and click
Select the new channel in the list to display the configuration options.
Specify whether each DIO pin is an input or an output using the DIO
Direction drop-down menus.
Configure the driver for Push-Pull or Open-Drain using the Driver
Type drop-down menu.