NI 9403 (Scan Interface)
CompactRIO 32-Channel, TTL Digital Input/Output Module
Module I/O Variables
To use I/O from this module in a VI, drag and drop I/O variables from the Project Explorer window to the block diagram of the VI. The I/O variables for the channels read and write Boolean values.
Module Channels
The NI 9403 has the following channels.
| Channel | Description |
|---|---|
| DIOx | Digital input/output channel x, where x is the number of the channel. For the NI 9403, x is 0 to 31. |
C Series Module Properties Dialog Box
Use this dialog box to configure the NI 9403. Right-click the NI 9403 in the Project Explorer window and select Properties to display this dialog box. You can configure the following options.
- Name—Specifies the name of the C Series module, which appears in the Project Explorer window. LabVIEW assigns a default name to the module based on the slot number. You can use this field to give the module a descriptive name.
- Module Type—Specifies the type of C Series module. You cannot change this value.
- Location—Specifies a slot in the chassis for the C Series module.
- Channels—Specifies the channel(s) for which you want to configure settings.
- Initial Line Direction—Specifies the initial line direction of the selected channel(s) as input or output.
Hardware Documentation
Refer to the NI 9403 Operating Instructions and Specifications to learn about module specifications and how to use the module. Refer to the CompactRIO Related Documentation (Scan Interface) topic for further information about CompactRIO documentation.