NI 9425 (FPGA Interface)
CompactRIO 32-Channel, 24 V, Sinking Digital Input Module
FPGA I/O Node
You can use an FPGA I/O Node, configured for reading, with this device.
Terminals in Software
Use the FPGA I/O Node to access the following terminals for this device.
| Terminal | Description |
|---|---|
| DIx | Digital input channel x, where x is the number of the channel. The NI 9425 has DI channels 0 to 31. |
| DI7:0 | Digital port consisting of channels 0 through 7. Channel 7 is returned in the MSB, and channel 0 is returned in the LSB. |
| DI15:8 | Digital port consisting of channels 8 through 15. Channel 15 is returned in the MSB, and channel 8 is returned in the LSB. |
| DI23:16 | Digital port consisting of channels 16 through 23. Channel 23 is returned in the MSB, and channel 16 is returned in the LSB. |
| DI31:24 | Digital port consisting of channels 24 through 31. Channel 31 is returned in the MSB, and channel 24 is returned in the LSB. |
| DI31:0 | Digital port consisting of channels 0 through 31. Channel 31 is returned in the MSB, and channel 0 is returned in the LSB. |
Arbitration
This device supports only the Arbitrate if Multiple Requestors Only option for arbitration. You cannot configure arbitration settings for this device.
Methods
This device does not support any methods.
Module Properties
Use the FPGA I/O Property Node to access the following properties for this device. This device does not support any I/O properties.
| Property | Description |
|---|---|
| Module ID | Returns the module ID. |
| Serial Number | Returns the unique serial number of the module. |
| Vendor ID | Returns the National Instruments vendor ID, 0x1093. |
Single-Cycle Timed Loop
This device does not support the single-cycle Timed Loop.
Hardware Documentation
Refer to the NI 9425 Operating Instructions and Specifications to learn about module specifications and how to use the module. Refer to the CompactRIO Related Documentation for further information about CompactRIO documentation.